diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5fb426b..f1b1465 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
         go: ["1.18", "1.18.1", "1.19", "1.20"]
     name: Go ${{ matrix.go }} run
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Setup go
         uses: actions/setup-go@v4
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d66db15..0410a0a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
       - name: Set up Go
diff --git a/.github/workflows/release_package.yml b/.github/workflows/release_package.yml
index 1fe3179..7777bd1 100644
--- a/.github/workflows/release_package.yml
+++ b/.github/workflows/release_package.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
       - name: Set up Go