diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 00994a6..a85985b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,12 +7,12 @@ jobs:
     runs-on: ubuntu-latest
     name: Go test
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Get latest Go version
         id: gover
         run: echo goversion=$(awk -F':|-' '!/^#/ {print $2}' .github/dockerfile-for-dependabot/Dockerfile) >> "$GITHUB_OUTPUT"
       - name: Setup go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
           go-version: "${{ steps.gover.outputs.goversion }}"
       - run: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0ba775a..bec35e9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,14 +15,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           fetch-depth: 0
       - name: Get latest Go version
         id: gover
         run: echo goversion=$(awk -F':|-' '!/^#/ {print $2}' .github/dockerfile-for-dependabot/Dockerfile) >> "$GITHUB_OUTPUT"
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
           go-version: "${{ steps.gover.outputs.goversion }}"
       - name: Extract release changelog