diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3e81896..720f5ea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install actionlint
         env:
@@ -45,7 +45,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install YAML parser
         run: |
@@ -84,9 +84,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: '3.13'
 
@@ -111,8 +111,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: '20'
       - name: Install deploy-check dependencies
@@ -130,6 +130,6 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Verify all gating jobs succeeded
-        uses: re-actors/alls-green@release/v1
+        uses: re-actors/alls-green@b5b5b37504aa4183270bd3d855c52a67f212be35 # release/v1
         with:
           jobs: ${{ toJSON(needs) }}
diff --git a/.github/workflows/container-publish.yml b/.github/workflows/container-publish.yml
index ab39dd0..3ba9713 100644
--- a/.github/workflows/container-publish.yml
+++ b/.github/workflows/container-publish.yml
@@ -41,14 +41,14 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: docker/setup-qemu-action@v4
+      - uses: docker/setup-qemu-action@1f40c72289eff860ee54a304f1438e3cff362e0a # v4.3.0
 
-      - uses: docker/setup-buildx-action@v4
+      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
 
       - name: Log in to GHCR
-        uses: docker/login-action@v4
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -79,7 +79,7 @@ jobs:
           } >> "$GITHUB_OUTPUT"
 
       - name: Build and publish image
-        uses: docker/build-push-action@v7
+        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
         with:
           context: ${{ inputs.context }}
           file: ${{ inputs.dockerfile }}
diff --git a/.github/workflows/crac-train.yml b/.github/workflows/crac-train.yml
index 4adc641..b2696b0 100644
--- a/.github/workflows/crac-train.yml
+++ b/.github/workflows/crac-train.yml
@@ -66,9 +66,9 @@ jobs:
       matrix:
         include: ${{ fromJSON(inputs.service-matrix) }}
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: docker/setup-buildx-action@v4
+      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
 
       - name: Resolve requested sidecars
         id: sidecars
@@ -199,7 +199,7 @@ jobs:
           exit 1
 
       - name: Build training image
-        uses: docker/build-push-action@v7
+        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
         with:
           context: ${{ matrix.context || '.' }}
           file: ${{ matrix.dockerfile }}
@@ -293,7 +293,7 @@ jobs:
         run: |
           docker rm -f crac-postgres crac-valkey crac-rabbitmq >/dev/null 2>&1 || true
 
-      - uses: actions/upload-artifact@v7.0.1
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: ${{ matrix.service }}-checkpoint
           path: checkpoint/
diff --git a/.github/workflows/deploy-artifact.yml b/.github/workflows/deploy-artifact.yml
index 180f8e2..caf6130 100644
--- a/.github/workflows/deploy-artifact.yml
+++ b/.github/workflows/deploy-artifact.yml
@@ -84,12 +84,12 @@ jobs:
 
     steps:
       # Checkout the service repository at the requested ref
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           ref: ${{ inputs.ref }}
 
       # Checkout github-workflows at the workflow SHA so actions are in sync
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
@@ -141,7 +141,7 @@ jobs:
 
       - name: Attest build provenance
         if: ${{ steps.publish.outputs.artifact-digest != '' }}
-        uses: actions/attest-build-provenance@0f67c3f4856b2e3261c31976d6725780e5e4c373 # v4.1.1
+        uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4.2.2
         with:
           subject-name: ghcr.io/jorisjonkers-dev/${{ inputs.artifact-name }}
           subject-digest: ${{ steps.publish.outputs.artifact-digest }}
diff --git a/.github/workflows/deploy-config-render-drift.yml b/.github/workflows/deploy-config-render-drift.yml
index 5204ae6..d924d78 100644
--- a/.github/workflows/deploy-config-render-drift.yml
+++ b/.github/workflows/deploy-config-render-drift.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Resolve workflow ref
         id: workflow-ref
@@ -55,7 +55,7 @@ jobs:
 
           printf 'ref=%s\n' "$ref" >> "$GITHUB_OUTPUT"
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/deploy-validate.yml b/.github/workflows/deploy-validate.yml
index 13b1619..1f6c956 100644
--- a/.github/workflows/deploy-validate.yml
+++ b/.github/workflows/deploy-validate.yml
@@ -54,14 +54,14 @@ jobs:
       gate-summary-artifact: gate-summary-deploy-validate
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
       # Checkout github-workflows at this workflow file's own released version.
       # github.job_workflow_sha is empty inside a reusable workflow, which made
       # actions/checkout silently fall back to the default branch, so every
       # consumer ran main regardless of the tag it pinned. release-please keeps
       # the literal below in step with the tag this file ships in.
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/docker-image-ci.yml b/.github/workflows/docker-image-ci.yml
index ddda104..e7469d3 100644
--- a/.github/workflows/docker-image-ci.yml
+++ b/.github/workflows/docker-image-ci.yml
@@ -42,9 +42,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: docker/setup-buildx-action@v4
+      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
 
       - name: Resolve image reference
         id: image
@@ -65,7 +65,7 @@ jobs:
           printf 'tag=%s:ci-%s\n' "$image_ref" "$GITHUB_SHA" >> "$GITHUB_OUTPUT"
 
       - name: Build image
-        uses: docker/build-push-action@v7
+        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
         with:
           context: ${{ inputs.context }}
           file: ${{ inputs.dockerfile }}
diff --git a/.github/workflows/flux-render-validate.yml b/.github/workflows/flux-render-validate.yml
index f7104cc..21b3867 100644
--- a/.github/workflows/flux-render-validate.yml
+++ b/.github/workflows/flux-render-validate.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Resolve workflow ref
         id: workflow-ref
@@ -55,7 +55,7 @@ jobs:
 
           printf 'ref=%s\n' "$ref" >> "$GITHUB_OUTPUT"
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/gitops-ci.yml b/.github/workflows/gitops-ci.yml
index 5d58c2c..0ef6e77 100644
--- a/.github/workflows/gitops-ci.yml
+++ b/.github/workflows/gitops-ci.yml
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Resolve workflow ref
         id: workflow-ref
@@ -62,7 +62,7 @@ jobs:
 
           printf 'ref=%s\n' "$ref" >> "$GITHUB_OUTPUT"
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/jvm-ci.yml b/.github/workflows/jvm-ci.yml
index a9d548d..5d8a417 100644
--- a/.github/workflows/jvm-ci.yml
+++ b/.github/workflows/jvm-ci.yml
@@ -57,9 +57,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
@@ -81,9 +81,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/leak-scan.yml b/.github/workflows/leak-scan.yml
index e5c722b..f73858d 100644
--- a/.github/workflows/leak-scan.yml
+++ b/.github/workflows/leak-scan.yml
@@ -53,7 +53,7 @@ jobs:
 
     steps:
       # fetch-depth: 0 is required for all-refs and pr-diff modes
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           fetch-depth: 0
 
@@ -62,7 +62,7 @@ jobs:
       # actions/checkout silently fall back to the default branch, so every
       # consumer ran main regardless of the tag it pinned. release-please keeps
       # the literal below in step with the tag this file ships in.
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/migration-guard.yml b/.github/workflows/migration-guard.yml
index 0d45436..3e54b5c 100644
--- a/.github/workflows/migration-guard.yml
+++ b/.github/workflows/migration-guard.yml
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
 
@@ -54,7 +54,7 @@ jobs:
 
           printf 'ref=%s\n' "$ref" >> "$GITHUB_OUTPUT"
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/nix-ci.yml b/.github/workflows/nix-ci.yml
index fdf3a81..caeb013 100644
--- a/.github/workflows/nix-ci.yml
+++ b/.github/workflows/nix-ci.yml
@@ -43,9 +43,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: cachix/install-nix-action@v31
+      - uses: cachix/install-nix-action@13d8dd58da0234aa297dedd986986ccb8e7f3e24 # v31.11.1
 
       - name: Check Nix formatting
         working-directory: ${{ inputs.flake-path }}
diff --git a/.github/workflows/node-ci.yml b/.github/workflows/node-ci.yml
index 501e7d6..41a9fbc 100644
--- a/.github/workflows/node-ci.yml
+++ b/.github/workflows/node-ci.yml
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Resolve workflow ref
         id: workflow-ref
@@ -91,7 +91,7 @@ jobs:
 
           printf 'ref=%s\n' "$ref" >> "$GITHUB_OUTPUT"
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/platform-config-validate.yml b/.github/workflows/platform-config-validate.yml
index d647e50..8ab2f5a 100644
--- a/.github/workflows/platform-config-validate.yml
+++ b/.github/workflows/platform-config-validate.yml
@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Resolve workflow ref
         id: workflow-ref
@@ -64,7 +64,7 @@ jobs:
 
           printf 'ref=%s\n' "$ref" >> "$GITHUB_OUTPUT"
 
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
diff --git a/.github/workflows/production-canary.yml b/.github/workflows/production-canary.yml
index 58a353b..1228bf7 100644
--- a/.github/workflows/production-canary.yml
+++ b/.github/workflows/production-canary.yml
@@ -57,7 +57,7 @@ jobs:
     timeout-minutes: ${{ inputs.timeout-minutes }}
     if: ${{ inputs.enabled }}
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Wait after push
         if: ${{ github.event_name == 'push' && inputs.post-push-delay-seconds > 0 }}
diff --git a/.github/workflows/publish-api-clients.yml b/.github/workflows/publish-api-clients.yml
index 4b37ff6..546beee 100644
--- a/.github/workflows/publish-api-clients.yml
+++ b/.github/workflows/publish-api-clients.yml
@@ -61,9 +61,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           repository: JorisJonkers-dev/github-workflows
           ref: v0.18.0 # x-release-please-version
@@ -77,7 +77,7 @@ jobs:
 
       # Install Node + configure the GitHub Packages registry only. Do NOT install here —
       # the typescript project is created by api-client-publish, which runs npm install itself.
-      - uses: actions/setup-node@v7
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: ${{ inputs.node-version }}
           registry-url: ${{ inputs.npm-registry-url }}
diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index 21b50db..fb898b2 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -43,9 +43,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: ${{ inputs.python-version }}
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2470f5f..9e4b2a1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -29,13 +29,13 @@ jobs:
       # default GITHUB_TOKEN) so CI runs on the PR without a manual approval
       # gate. Best-effort: falls back to GITHUB_TOKEN when the App secrets or
       # installation are absent.
-      - uses: actions/create-github-app-token@v3
+      - uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         id: app-token
         continue-on-error: true
         with:
           app-id: ${{ secrets.RELEASE_APP_ID }}
           private-key: ${{ secrets.RELEASE_APP_PRIVATE_KEY }}
-      - uses: googleapis/release-please-action@v5
+      - uses: googleapis/release-please-action@45996ed1f6d02564a971a2fa1b5860e934307cf7 # v5.0.0
         id: rp
         with:
           token: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}
@@ -60,9 +60,9 @@ jobs:
       - name: Publish tag-ref deliverable
         run: echo "Released ${{ needs.release-please.outputs.tag_name }}"
 
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: '20'
           registry-url: https://npm.pkg.github.com
diff --git a/.github/workflows/tofu-ci.yml b/.github/workflows/tofu-ci.yml
index e437395..25038c0 100644
--- a/.github/workflows/tofu-ci.yml
+++ b/.github/workflows/tofu-ci.yml
@@ -68,7 +68,7 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install OpenTofu
         env:
diff --git a/actions/deploy-bundle/action.yml b/actions/deploy-bundle/action.yml
index 6eebd95..8f602ff 100644
--- a/actions/deploy-bundle/action.yml
+++ b/actions/deploy-bundle/action.yml
@@ -49,7 +49,7 @@ outputs:
 runs:
   using: 'composite'
   steps:
-    - uses: 'actions/setup-node@v6'
+    - uses: 'actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38' # v6.5.0
       with:
         node-version: '24'
 
diff --git a/actions/deploy-config-render-drift/action.yml b/actions/deploy-config-render-drift/action.yml
index 1392215..ba284e5 100644
--- a/actions/deploy-config-render-drift/action.yml
+++ b/actions/deploy-config-render-drift/action.yml
@@ -24,7 +24,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: actions/setup-node@v6
+    - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6.5.0
       with:
         node-version: '24'
 
diff --git a/actions/deploy-sources-render/action.yml b/actions/deploy-sources-render/action.yml
index aa281d1..04321b7 100644
--- a/actions/deploy-sources-render/action.yml
+++ b/actions/deploy-sources-render/action.yml
@@ -63,7 +63,7 @@ outputs:
 runs:
   using: 'composite'
   steps:
-    - uses: 'actions/setup-node@v6'
+    - uses: 'actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38' # v6.5.0
       with:
         node-version: '24'
 
diff --git a/actions/flux-render-validate/action.yml b/actions/flux-render-validate/action.yml
index f0eb7ea..9b5bb5b 100644
--- a/actions/flux-render-validate/action.yml
+++ b/actions/flux-render-validate/action.yml
@@ -37,7 +37,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
       with:
         repository: ${{ inputs.crd-catalog-source }}
         ref: ${{ inputs.crd-catalog-ref }}
diff --git a/actions/platform-config-validate/action.yml b/actions/platform-config-validate/action.yml
index 1e5046b..0fbf741 100644
--- a/actions/platform-config-validate/action.yml
+++ b/actions/platform-config-validate/action.yml
@@ -32,7 +32,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: actions/setup-node@v6
+    - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6.5.0
       with:
         node-version: '24'
 
diff --git a/actions/prepare-ci-host/action.yml b/actions/prepare-ci-host/action.yml
index ccbb692..7d9afd6 100644
--- a/actions/prepare-ci-host/action.yml
+++ b/actions/prepare-ci-host/action.yml
@@ -30,7 +30,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: actions/download-artifact@v8
+    - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
       with:
         pattern: ${{ inputs.artifact-pattern }}
         path: ${{ inputs.artifact-path }}
diff --git a/actions/setup-java-gradle/action.yml b/actions/setup-java-gradle/action.yml
index 83a748a..5eb7326 100644
--- a/actions/setup-java-gradle/action.yml
+++ b/actions/setup-java-gradle/action.yml
@@ -46,12 +46,12 @@ runs:
           printf 'GITHUB_TOKEN=%s\n' "$GITHUB_PACKAGES_TOKEN"
         } >> "$GITHUB_ENV"
 
-    - uses: actions/setup-java@v5
+    - uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
       with:
         distribution: ${{ inputs.java-distribution }}
         java-version: ${{ inputs.java-version }}
 
-    - uses: gradle/actions/setup-gradle@v6
+    - uses: gradle/actions/setup-gradle@9c971963bec38e04b3d30dcc455b5382be2fdbfb # v6.3.0
       with:
         cache-disabled: ${{ inputs.gradle-cache-disabled }}
         cache-read-only: ${{ inputs.gradle-cache-read-only }}
diff --git a/actions/setup-node/action.yml b/actions/setup-node/action.yml
index c16d935..a2a16fd 100644
--- a/actions/setup-node/action.yml
+++ b/actions/setup-node/action.yml
@@ -59,9 +59,9 @@ runs:
 
     - name: Set up pnpm
       if: ${{ inputs.package-manager == 'pnpm' }}
-      uses: pnpm/action-setup@v6
+      uses: pnpm/action-setup@ea17c68df8912ef543352723c149a84f56e3d413 # v6.1.0
 
-    - uses: actions/setup-node@v6
+    - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6.5.0
       with:
         node-version: ${{ inputs.node-version }}
         cache: ${{ inputs.package-manager }}