diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0cb1143..36e5105 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,7 @@ jobs:
           distribution: 'temurin'
           java-version: '11'
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           ref: ${{ github.ref }}
       - name: Publish
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 289c3ca..6279204 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,7 +14,7 @@ jobs:
           distribution: 'temurin'
           java-version: '11'
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Run tests
         uses: burrunan/gradle-cache-action@v1
         with: