diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
index 71f94c8f..e2ce75d0 100644
--- a/.github/workflows/ci-tests.yml
+++ b/.github/workflows/ci-tests.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Check out pull request's HEAD commit instead of the merge commit to
           # work-around an issue where a wrong commit is being checked out.
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 540742fa..b611e811 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Check out pull request's HEAD commit instead of the merge commit to
           # work-around an issue where a wrong commit is being checked out.