diff --git a/.github/actions/prepare-bazel-ci/action.yml b/.github/actions/prepare-bazel-ci/action.yml
index 48c6ba74b4ea..b41d80e0bca5 100644
--- a/.github/actions/prepare-bazel-ci/action.yml
+++ b/.github/actions/prepare-bazel-ci/action.yml
@@ -50,7 +50,7 @@ runs:
     - name: Restore bazel repository cache
       id: cache_bazel_repository_restore
       continue-on-error: true
-      uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+      uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
       with:
         path: ${{ steps.setup_bazel.outputs.repository-cache-path }}
         key: ${{ steps.cache_bazel_repository_key.outputs.repository-cache-key }}
diff --git a/.github/actions/windows-code-sign/action.yml b/.github/actions/windows-code-sign/action.yml
index 6289fa917dd5..634d647e06e4 100644
--- a/.github/actions/windows-code-sign/action.yml
+++ b/.github/actions/windows-code-sign/action.yml
@@ -30,7 +30,7 @@ runs:
   using: composite
   steps:
     - name: Azure login for Trusted Signing (OIDC)
-      uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2
+      uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2.3.0
       with:
         client-id: ${{ inputs.client-id }}
         tenant-id: ${{ inputs.tenant-id }}
@@ -54,7 +54,7 @@ runs:
         } >> "$GITHUB_OUTPUT"
 
     - name: Sign Windows binaries with Azure Trusted Signing
-      uses: azure/trusted-signing-action@1d365fec12862c4aa68fcac418143d73f0cea293 # v0
+      uses: azure/trusted-signing-action@1d365fec12862c4aa68fcac418143d73f0cea293 # v0.5.11
       with:
         endpoint: ${{ inputs.endpoint }}
         trusted-signing-account-name: ${{ inputs.account-name }}
diff --git a/.github/workflows/bazel.yml b/.github/workflows/bazel.yml
index 79b49ddb1067..082434de0b1a 100644
--- a/.github/workflows/bazel.yml
+++ b/.github/workflows/bazel.yml
@@ -56,7 +56,7 @@ jobs:
     name: Bazel test on ${{ matrix.os }} for ${{ matrix.target }}
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Check rusty_v8 MODULE.bazel checksums
         if: matrix.os == 'ubuntu-24.04' && matrix.target == 'x86_64-unknown-linux-gnu'
@@ -122,7 +122,7 @@ jobs:
       - name: Upload Bazel execution logs
         if: always() && !cancelled()
         continue-on-error: true
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: bazel-execution-logs-test-${{ matrix.target }}
           path: ${{ runner.temp }}/bazel-execution-logs
@@ -133,7 +133,7 @@ jobs:
       - name: Save bazel repository cache
         if: always() && !cancelled() && steps.prepare_bazel.outputs.repository-cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ steps.prepare_bazel.outputs.repository-cache-path }}
           key: ${{ steps.prepare_bazel.outputs.repository-cache-key }}
@@ -148,7 +148,7 @@ jobs:
     name: Bazel test on windows-latest for x86_64-pc-windows-gnullvm (native main)
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Prepare Bazel CI
         id: prepare_bazel
@@ -195,7 +195,7 @@ jobs:
       - name: Upload Bazel execution logs
         if: always() && !cancelled()
         continue-on-error: true
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: bazel-execution-logs-test-windows-native-x86_64-pc-windows-gnullvm
           path: ${{ runner.temp }}/bazel-execution-logs
@@ -206,7 +206,7 @@ jobs:
       - name: Save bazel repository cache
         if: always() && !cancelled() && steps.prepare_bazel.outputs.repository-cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ steps.prepare_bazel.outputs.repository-cache-path }}
           key: ${{ steps.prepare_bazel.outputs.repository-cache-key }}
@@ -231,7 +231,7 @@ jobs:
     name: Bazel clippy on ${{ matrix.os }} for ${{ matrix.target }}
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Prepare Bazel CI
         id: prepare_bazel
@@ -286,7 +286,7 @@ jobs:
       - name: Upload Bazel execution logs
         if: always() && !cancelled()
         continue-on-error: true
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: bazel-execution-logs-clippy-${{ matrix.target }}
           path: ${{ runner.temp }}/bazel-execution-logs
@@ -297,7 +297,7 @@ jobs:
       - name: Save bazel repository cache
         if: always() && !cancelled() && steps.prepare_bazel.outputs.repository-cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ steps.prepare_bazel.outputs.repository-cache-path }}
           key: ${{ steps.prepare_bazel.outputs.repository-cache-key }}
@@ -318,7 +318,7 @@ jobs:
     name: Verify release build on ${{ matrix.os }} for ${{ matrix.target }}
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Prepare Bazel CI
         id: prepare_bazel
@@ -390,7 +390,7 @@ jobs:
       - name: Upload Bazel execution logs
         if: always() && !cancelled()
         continue-on-error: true
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: bazel-execution-logs-verify-release-build-${{ matrix.target }}
           path: ${{ runner.temp }}/bazel-execution-logs
@@ -401,7 +401,7 @@ jobs:
       - name: Save bazel repository cache
         if: always() && !cancelled() && steps.prepare_bazel.outputs.repository-cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ steps.prepare_bazel.outputs.repository-cache-path }}
           key: ${{ steps.prepare_bazel.outputs.repository-cache-key }}
diff --git a/.github/workflows/blob-size-policy.yml b/.github/workflows/blob-size-policy.yml
index b96cb98c30ab..e7cd67072f66 100644
--- a/.github/workflows/blob-size-policy.yml
+++ b/.github/workflows/blob-size-policy.yml
@@ -8,7 +8,7 @@ jobs:
     name: Blob size policy
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/cargo-deny.yml b/.github/workflows/cargo-deny.yml
index 46ecc97dd17e..024198b8d177 100644
--- a/.github/workflows/cargo-deny.yml
+++ b/.github/workflows/cargo-deny.yml
@@ -14,7 +14,7 @@ jobs:
         working-directory: ./codex-rs
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 699ab070c8a4..1a6ce7058ef0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
       NODE_OPTIONS: --max-old-space-size=4096
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Verify codex-rs Cargo manifests inherit workspace settings
         run: python3 .github/scripts/verify_cargo_workspace_manifests.py
@@ -29,7 +29,7 @@ jobs:
           run_install: false
 
       - name: Setup Node.js
-        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 22
 
@@ -63,7 +63,7 @@ jobs:
           echo "pack_output=$PACK_OUTPUT" >> "$GITHUB_OUTPUT"
 
       - name: Upload staged npm package artifact
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: codex-npm-staging
           path: ${{ steps.stage_npm_package.outputs.pack_output }}
diff --git a/.github/workflows/close-stale-contributor-prs.yml b/.github/workflows/close-stale-contributor-prs.yml
index 8fb51327720d..e8cea8226bfc 100644
--- a/.github/workflows/close-stale-contributor-prs.yml
+++ b/.github/workflows/close-stale-contributor-prs.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Close inactive PRs from contributors
-        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index 8e9f701eec81..52c9438b385c 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -18,9 +18,9 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Annotate locations with typos
-        uses: codespell-project/codespell-problem-matcher@b80729f885d32f78a716c2f107b4db1025001c42 # v1
+        uses: codespell-project/codespell-problem-matcher@b80729f885d32f78a716c2f107b4db1025001c42 # v1.1.0
       - name: Codespell
         uses: codespell-project/actions-codespell@8f01853be192eb0f849a5c7d721450e7a467c579 # v2.2
         with:
diff --git a/.github/workflows/issue-deduplicator.yml b/.github/workflows/issue-deduplicator.yml
index 17306d72e128..66148f09b864 100644
--- a/.github/workflows/issue-deduplicator.yml
+++ b/.github/workflows/issue-deduplicator.yml
@@ -19,7 +19,7 @@ jobs:
       reason: ${{ steps.normalize-all.outputs.reason }}
       has_matches: ${{ steps.normalize-all.outputs.has_matches }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Prepare Codex inputs
         env:
@@ -155,7 +155,7 @@ jobs:
       reason: ${{ steps.normalize-open.outputs.reason }}
       has_matches: ${{ steps.normalize-open.outputs.has_matches }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Prepare Codex inputs
         env:
@@ -342,7 +342,7 @@ jobs:
       issues: write
     steps:
       - name: Comment on issue
-        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         env:
           CODEX_OUTPUT: ${{ needs.select-final.outputs.codex_output }}
         with:
diff --git a/.github/workflows/issue-labeler.yml b/.github/workflows/issue-labeler.yml
index ce5edcac8ecc..5ae456633ccc 100644
--- a/.github/workflows/issue-labeler.yml
+++ b/.github/workflows/issue-labeler.yml
@@ -17,7 +17,7 @@ jobs:
     outputs:
       codex_output: ${{ steps.codex.outputs.final-message }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - id: codex
         uses: openai/codex-action@5c3f4ccdb2b8790f73d6b21751ac00e602aa0c02 # v1.7
diff --git a/.github/workflows/rust-ci-full.yml b/.github/workflows/rust-ci-full.yml
index 7e4d3a8949d1..9927a0302f44 100644
--- a/.github/workflows/rust-ci-full.yml
+++ b/.github/workflows/rust-ci-full.yml
@@ -17,7 +17,7 @@ jobs:
       run:
         working-directory: codex-rs
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
         with:
           components: rustfmt
@@ -31,9 +31,9 @@ jobs:
       run:
         working-directory: codex-rs
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
-      - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
+      - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
         with:
           tool: cargo-shear
           version: 1.5.1
@@ -47,14 +47,14 @@ jobs:
       CARGO_DYLINT_VERSION: 5.0.0
       DYLINT_LINK_VERSION: 5.0.0
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
         with:
           toolchain: nightly-2025-09-18
           components: llvm-tools-preview, rustc-dev, rust-src
       - name: Cache cargo-dylint tooling
         id: cargo_dylint_cache
-        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cargo/bin/cargo-dylint
@@ -97,7 +97,7 @@ jobs:
               group: codex-runners
               labels: codex-windows-x64
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: ./.github/actions/setup-bazel-ci
         with:
           target: ${{ runner.os }}
@@ -233,7 +233,7 @@ jobs:
               labels: codex-windows-arm64
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Install Linux build dependencies
         if: ${{ runner.os == 'Linux' }}
         shell: bash
@@ -276,7 +276,7 @@ jobs:
       # avoid caching the large target dir on the gnu-dev job.
       - name: Restore cargo home cache
         id: cache_cargo_home_restore
-        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cargo/bin/
@@ -294,7 +294,7 @@ jobs:
       # Install and restore sccache cache
       - name: Install sccache
         if: ${{ env.USE_SCCACHE == 'true' }}
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
+        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
         with:
           tool: sccache
           version: 0.7.5
@@ -321,7 +321,7 @@ jobs:
       - name: Restore sccache cache (fallback)
         if: ${{ env.USE_SCCACHE == 'true' && env.SCCACHE_GHA_ENABLED != 'true' }}
         id: cache_sccache_restore
-        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ github.workspace }}/.sccache/
           key: sccache-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.profile }}-${{ steps.lockhash.outputs.hash }}-${{ github.run_id }}
@@ -348,7 +348,7 @@ jobs:
       - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
         name: Restore APT cache (musl)
         id: cache_apt_restore
-        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             /var/cache/apt
@@ -356,7 +356,7 @@ jobs:
 
       - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
         name: Install Zig
-        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2
+        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.2.1
         with:
           version: 0.14.0
 
@@ -430,7 +430,7 @@ jobs:
 
       - name: Install cargo-chef
         if: ${{ matrix.profile == 'release' }}
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
+        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
         with:
           tool: cargo-chef
           version: 0.1.71
@@ -449,7 +449,7 @@ jobs:
 
       - name: Upload Cargo timings (clippy)
         if: always()
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: cargo-timings-rust-ci-clippy-${{ matrix.target }}-${{ matrix.profile }}
           path: codex-rs/target/**/cargo-timings/cargo-timing.html
@@ -460,7 +460,7 @@ jobs:
       - name: Save cargo home cache
         if: always() && !cancelled() && steps.cache_cargo_home_restore.outputs.cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cargo/bin/
@@ -476,7 +476,7 @@ jobs:
       - name: Save sccache cache (fallback)
         if: always() && !cancelled() && env.USE_SCCACHE == 'true' && env.SCCACHE_GHA_ENABLED != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ github.workspace }}/.sccache/
           key: sccache-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.profile }}-${{ steps.lockhash.outputs.hash }}-${{ github.run_id }}
@@ -501,7 +501,7 @@ jobs:
       - name: Save APT cache (musl)
         if: always() && !cancelled() && (matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl') && steps.cache_apt_restore.outputs.cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             /var/cache/apt
@@ -559,7 +559,7 @@ jobs:
               labels: codex-windows-arm64
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Install Linux build dependencies
         if: ${{ runner.os == 'Linux' }}
         shell: bash
@@ -590,7 +590,7 @@ jobs:
 
       - name: Restore cargo home cache
         id: cache_cargo_home_restore
-        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cargo/bin/
@@ -603,7 +603,7 @@ jobs:
 
       - name: Install sccache
         if: ${{ env.USE_SCCACHE == 'true' }}
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
+        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
         with:
           tool: sccache
           version: 0.7.5
@@ -630,7 +630,7 @@ jobs:
       - name: Restore sccache cache (fallback)
         if: ${{ env.USE_SCCACHE == 'true' && env.SCCACHE_GHA_ENABLED != 'true' }}
         id: cache_sccache_restore
-        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ github.workspace }}/.sccache/
           key: sccache-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.profile }}-${{ steps.lockhash.outputs.hash }}-${{ github.run_id }}
@@ -638,7 +638,7 @@ jobs:
             sccache-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.profile }}-${{ steps.lockhash.outputs.hash }}-
             sccache-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.profile }}-
 
-      - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
+      - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
         with:
           tool: nextest
           version: 0.9.103
@@ -674,7 +674,7 @@ jobs:
 
       - name: Upload Cargo timings (nextest)
         if: always()
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: cargo-timings-rust-ci-nextest-${{ matrix.target }}-${{ matrix.profile }}
           path: codex-rs/target/**/cargo-timings/cargo-timing.html
@@ -683,7 +683,7 @@ jobs:
       - name: Save cargo home cache
         if: always() && !cancelled() && steps.cache_cargo_home_restore.outputs.cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cargo/bin/
@@ -695,7 +695,7 @@ jobs:
       - name: Save sccache cache (fallback)
         if: always() && !cancelled() && env.USE_SCCACHE == 'true' && env.SCCACHE_GHA_ENABLED != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ github.workspace }}/.sccache/
           key: sccache-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.profile }}-${{ steps.lockhash.outputs.hash }}-${{ github.run_id }}
diff --git a/.github/workflows/rust-ci.yml b/.github/workflows/rust-ci.yml
index 42a3ca876412..989ec48a4c28 100644
--- a/.github/workflows/rust-ci.yml
+++ b/.github/workflows/rust-ci.yml
@@ -14,7 +14,7 @@ jobs:
       codex: ${{ steps.detect.outputs.codex }}
       workflows: ${{ steps.detect.outputs.workflows }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
       - name: Detect changed paths (no external action)
@@ -61,7 +61,7 @@ jobs:
       run:
         working-directory: codex-rs
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
         with:
           components: rustfmt
@@ -77,9 +77,9 @@ jobs:
       run:
         working-directory: codex-rs
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
-      - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2
+      - uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
         with:
           tool: cargo-shear
           version: 1.5.1
@@ -95,7 +95,7 @@ jobs:
       CARGO_DYLINT_VERSION: 5.0.0
       DYLINT_LINK_VERSION: 5.0.0
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
       - name: Install nightly argument-comment-lint toolchain
         shell: bash
@@ -109,7 +109,7 @@ jobs:
           rustup default nightly-2025-09-18
       - name: Cache cargo-dylint tooling
         id: cargo_dylint_cache
-        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cargo/bin/cargo-dylint
@@ -170,7 +170,7 @@ jobs:
 
           echo "No argument-comment-lint relevant changes."
           echo "run=false" >> "$GITHUB_OUTPUT"
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         if: ${{ steps.argument_comment_lint_gate.outputs.run == 'true' }}
       - name: Run argument comment lint on codex-rs via Bazel
         if: ${{ steps.argument_comment_lint_gate.outputs.run == 'true' }}
diff --git a/.github/workflows/rust-release-argument-comment-lint.yml b/.github/workflows/rust-release-argument-comment-lint.yml
index ba0d147d4f6a..277dcd122af7 100644
--- a/.github/workflows/rust-release-argument-comment-lint.yml
+++ b/.github/workflows/rust-release-argument-comment-lint.yml
@@ -56,7 +56,7 @@ jobs:
               labels: codex-windows-x64
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
         with:
@@ -100,7 +100,7 @@ jobs:
             (cd "${RUNNER_TEMP}" && tar -czf "$GITHUB_WORKSPACE/$archive_path" argument-comment-lint)
           fi
 
-      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: argument-comment-lint-${{ matrix.target }}
           path: dist/argument-comment-lint/${{ matrix.target }}/*
diff --git a/.github/workflows/rust-release-prepare.yml b/.github/workflows/rust-release-prepare.yml
index 528c329d582a..b478344a2ced 100644
--- a/.github/workflows/rust-release-prepare.yml
+++ b/.github/workflows/rust-release-prepare.yml
@@ -18,7 +18,7 @@ jobs:
     if: github.repository == 'openai/codex'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           ref: main
           fetch-depth: 0
@@ -43,7 +43,7 @@ jobs:
           curl --http1.1 --fail --show-error --location "${headers[@]}" "${url}" | jq '.' > codex-rs/models-manager/models.json
 
       - name: Open pull request (if changed)
-        uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0 # v8
+        uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0 # v8.1.0
         with:
           commit-message: "Update models.json"
           title: "Update models.json"
diff --git a/.github/workflows/rust-release-windows.yml b/.github/workflows/rust-release-windows.yml
index 5e1edae17381..24d6d67e0316 100644
--- a/.github/workflows/rust-release-windows.yml
+++ b/.github/workflows/rust-release-windows.yml
@@ -83,7 +83,7 @@ jobs:
               labels: codex-windows-arm64
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Print runner specs (Windows)
         shell: powershell
         run: |
@@ -112,7 +112,7 @@ jobs:
           cargo build --target ${{ matrix.target }} --release --timings "${build_args[@]}"
 
       - name: Upload Cargo timings
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: cargo-timings-rust-release-windows-${{ matrix.target }}-${{ matrix.bundle }}
           path: codex-rs/target/**/cargo-timings/cargo-timing.html
@@ -128,7 +128,7 @@ jobs:
           done
 
       - name: Upload Windows binaries
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: windows-binaries-${{ matrix.target }}-${{ matrix.bundle }}
           path: |
@@ -165,22 +165,22 @@ jobs:
               labels: codex-windows-arm64
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Download prebuilt Windows primary binaries
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: windows-binaries-${{ matrix.target }}-primary
           path: codex-rs/target/${{ matrix.target }}/release
 
       - name: Download prebuilt Windows helper binaries
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: windows-binaries-${{ matrix.target }}-helpers
           path: codex-rs/target/${{ matrix.target }}/release
 
       - name: Download prebuilt Windows app-server binary
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: windows-binaries-${{ matrix.target }}-app-server
           path: codex-rs/target/${{ matrix.target }}/release
@@ -281,7 +281,7 @@ jobs:
             "${GITHUB_WORKSPACE}/.github/workflows/zstd" -T0 -19 "$dest/$base"
           done
 
-      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: ${{ matrix.target }}
           path: |
diff --git a/.github/workflows/rust-release-zsh.yml b/.github/workflows/rust-release-zsh.yml
index 7ec49f9863f9..838fe0c2827b 100644
--- a/.github/workflows/rust-release-zsh.yml
+++ b/.github/workflows/rust-release-zsh.yml
@@ -45,7 +45,7 @@ jobs:
             git \
             libncursesw5-dev
 
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Build, smoke-test, and stage zsh artifact
         shell: bash
@@ -53,7 +53,7 @@ jobs:
           "${GITHUB_WORKSPACE}/.github/scripts/build-zsh-release-artifact.sh" \
             "dist/zsh/${{ matrix.target }}/${{ matrix.archive_name }}"
 
-      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: codex-zsh-${{ matrix.target }}
           path: dist/zsh/${{ matrix.target }}/*
@@ -81,7 +81,7 @@ jobs:
             brew install autoconf
           fi
 
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Build, smoke-test, and stage zsh artifact
         shell: bash
@@ -89,7 +89,7 @@ jobs:
           "${GITHUB_WORKSPACE}/.github/scripts/build-zsh-release-artifact.sh" \
             "dist/zsh/${{ matrix.target }}/${{ matrix.archive_name }}"
 
-      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: codex-zsh-${{ matrix.target }}
           path: dist/zsh/${{ matrix.target }}/*
diff --git a/.github/workflows/rust-release.yml b/.github/workflows/rust-release.yml
index a7700ac9245d..43d70e5a3f3d 100644
--- a/.github/workflows/rust-release.yml
+++ b/.github/workflows/rust-release.yml
@@ -19,7 +19,7 @@ jobs:
   tag-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@a0b273b48ed29de4470960879e8381ff45632f26 # 1.93.0
       - name: Validate tag matches Cargo.toml version
         shell: bash
@@ -118,7 +118,7 @@ jobs:
             build_dmg: "false"
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Print runner specs (Linux)
         if: ${{ runner.os == 'Linux' }}
         shell: bash
@@ -181,7 +181,7 @@ jobs:
 
       - if: ${{ matrix.target == 'x86_64-unknown-linux-musl' || matrix.target == 'aarch64-unknown-linux-musl'}}
         name: Install Zig
-        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2
+        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.2.1
         with:
           version: 0.14.0
 
@@ -284,7 +284,7 @@ jobs:
           cargo build --target ${{ matrix.target }} --release --timings "${build_args[@]}"
 
       - name: Upload Cargo timings
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: cargo-timings-rust-release-${{ matrix.target }}-${{ matrix.bundle }}
           path: codex-rs/target/**/cargo-timings/cargo-timing.html
@@ -430,7 +430,7 @@ jobs:
             zstd -T0 -19 --rm "$dest/$base"
           done
 
-      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: ${{ matrix.artifact_name }}
           # Upload the per-binary .zst files, .tar.gz equivalents, and any
@@ -476,7 +476,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Generate release notes from tag commit message
         id: release_notes
@@ -498,7 +498,7 @@ jobs:
 
           echo "path=${notes_path}" >> "${GITHUB_OUTPUT}"
 
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           path: dist
 
@@ -553,7 +553,7 @@ jobs:
           run_install: false
 
       - name: Setup Node.js for npm packaging
-        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 22
 
@@ -579,7 +579,7 @@ jobs:
           cp scripts/install/install.ps1 dist/install.ps1
 
       - name: Create GitHub Release
-        uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2
+        uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2.6.1
         with:
           name: ${{ steps.release_name.outputs.name }}
           tag_name: ${{ github.ref_name }}
@@ -638,7 +638,7 @@ jobs:
 
     steps:
       - name: Setup Node.js
-        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           # Node 24 bundles npm >= 11.5.1, which trusted publishing requires.
           node-version: 24
diff --git a/.github/workflows/rusty-v8-release.yml b/.github/workflows/rusty-v8-release.yml
index bf9dcbfd6fc2..421346aae11e 100644
--- a/.github/workflows/rusty-v8-release.yml
+++ b/.github/workflows/rusty-v8-release.yml
@@ -17,10 +17,10 @@ jobs:
       v8_version: ${{ steps.v8_version.outputs.version }}
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.12"
 
@@ -69,7 +69,7 @@ jobs:
             target: aarch64-unknown-linux-musl
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Bazel
         uses: ./.github/actions/setup-bazel-ci
@@ -77,7 +77,7 @@ jobs:
           target: ${{ matrix.target }}
 
       - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.12"
 
@@ -133,7 +133,7 @@ jobs:
             --output-dir "dist/${TARGET}"
 
       - name: Upload staged musl artifacts
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: rusty-v8-${{ needs.metadata.outputs.v8_version }}-${{ matrix.target }}
           path: dist/${{ matrix.target }}/*
@@ -161,12 +161,12 @@ jobs:
             exit 1
           fi
 
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           path: dist
 
       - name: Create GitHub Release
-        uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2
+        uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2.6.1
         with:
           tag_name: ${{ needs.metadata.outputs.release_tag }}
           name: ${{ needs.metadata.outputs.release_tag }}
diff --git a/.github/workflows/sdk.yml b/.github/workflows/sdk.yml
index 45c983ac1ee8..861eb7a09548 100644
--- a/.github/workflows/sdk.yml
+++ b/.github/workflows/sdk.yml
@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Linux bwrap build dependencies
         shell: bash
@@ -28,7 +28,7 @@ jobs:
           run_install: false
 
       - name: Setup Node.js
-        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
         with:
           node-version: 22
           cache: pnpm
@@ -115,7 +115,7 @@ jobs:
       - name: Save bazel repository cache
         if: always() && !cancelled() && steps.setup_bazel.outputs.cache-hit != 'true'
         continue-on-error: true
-        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: |
             ~/.cache/bazel-repo-cache
diff --git a/.github/workflows/v8-canary.yml b/.github/workflows/v8-canary.yml
index 3b59348775c8..a1aeaf402954 100644
--- a/.github/workflows/v8-canary.yml
+++ b/.github/workflows/v8-canary.yml
@@ -40,10 +40,10 @@ jobs:
       v8_version: ${{ steps.v8_version.outputs.version }}
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.12"
 
@@ -74,7 +74,7 @@ jobs:
             target: aarch64-unknown-linux-musl
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Bazel
         uses: ./.github/actions/setup-bazel-ci
@@ -82,7 +82,7 @@ jobs:
           target: ${{ matrix.target }}
 
       - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.12"
 
@@ -132,7 +132,7 @@ jobs:
             --output-dir "dist/${TARGET}"
 
       - name: Upload staged musl artifacts
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: v8-canary-${{ needs.metadata.outputs.v8_version }}-${{ matrix.target }}
           path: dist/${{ matrix.target }}/*