diff --git a/.github/workflows/check-whitespace.yml b/.github/workflows/check-whitespace.yml
index 8722229..d7050b1 100644
--- a/.github/workflows/check-whitespace.yml
+++ b/.github/workflows/check-whitespace.yml
@@ -19,7 +19,7 @@ jobs:
         env:
           COMMITS: ${{ github.event.pull_request.commits }}
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: ${{ env.COMMIT_DEPTH }}
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6459fe8..e168c42 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
           php-version: ${{ matrix.php-version }}
           tools: composer
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0