diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 9a9c0fe..1f4fd0e 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -17,7 +17,7 @@ jobs:
     steps:
 
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 7b2e199..fbe1bd6 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0