diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 6aa0147..a32cd62 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -13,7 +13,7 @@ jobs:
   runs-on: ubuntu-latest
   steps:
   - name: Checkout
-    uses: actions/checkout@v3
+    uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
   - name: Setup Node.js
     uses: actions/setup-node@v3
     with:
@@ -34,7 +34,7 @@ jobs:
   needs: [test]
   steps:
   - name: Checkout
-    uses: actions/checkout@v3
+    uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
   - name: Setup Node.js
     uses: actions/setup-node@v3
     with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7e9a8d8..1ec44a7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
         os: [ubuntu-latest, macOS-latest, windows-latest]
         node-version: [12.x, 14.x, 16.x]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with: