diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9da3c62..a091514 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: open-cli-collective/.github/actions/go-lint@v1
+      - uses: open-cli-collective/.github/actions/go-lint@b816e09a862eec83f6ff334f94d6b96894f405ad
         with:
           go-version-file: go.mod
 
@@ -67,7 +67,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
         with:
           go-version-file: go.mod
       - name: Static release build guard
diff --git a/.github/workflows/test-chocolatey.yml b/.github/workflows/test-chocolatey.yml
index 000b786..b36d484 100644
--- a/.github/workflows/test-chocolatey.yml
+++ b/.github/workflows/test-chocolatey.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
         with:
           go-version-file: go.mod
 
diff --git a/go.mod b/go.mod
index 6ad89df..474d027 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/open-cli-collective/slack-chat-api
 
 go 1.26
 
-toolchain go1.26.10
+toolchain go1.27.4
 
 require (
 	github.com/byteness/keyring v1.11.0