diff --git a/.github/workflows/content-aware-hash.yml b/.github/workflows/content-aware-hash.yml
index 50e089b7b5d..4c9fb3efed2 100644
--- a/.github/workflows/content-aware-hash.yml
+++ b/.github/workflows/content-aware-hash.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: Generate Hash
         run: |
diff --git a/.github/workflows/files-changed.yml b/.github/workflows/files-changed.yml
index 582ddc036aa..ca858fdc48a 100644
--- a/.github/workflows/files-changed.yml
+++ b/.github/workflows/files-changed.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: Fetch base commit and origin/master
         # Fetch what to compare the commit against
@@ -35,7 +35,7 @@ jobs:
           ./bin/dart run dev/tools/bin/get_files_changed.dart --since="${{ github.event.pull_request.base.sha }}" > changed_files.json
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
         with:
           name: changed-files
           path: changed_files.json
diff --git a/.github/workflows/merge-changelog.yml b/.github/workflows/merge-changelog.yml
index bad3b822ecf..0e40867a860 100644
--- a/.github/workflows/merge-changelog.yml
+++ b/.github/workflows/merge-changelog.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Setup Repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           repository: ${{ github.repository }}
           ref: master
diff --git a/.github/workflows/tool-test-general.yml b/.github/workflows/tool-test-general.yml
index d036140ff93..d326db08ebe 100644
--- a/.github/workflows/tool-test-general.yml
+++ b/.github/workflows/tool-test-general.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       # Note: we must check out the tree for the composite action to be available
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - uses: ./.github/actions/composite-flutter-setup
 
       - name: Tool Test