diff --git a/.github/workflows/ci-format.yaml b/.github/workflows/ci-format.yaml
index c26fc77a..0712e70b 100644
--- a/.github/workflows/ci-format.yaml
+++ b/.github/workflows/ci-format.yaml
@@ -12,7 +12,7 @@ jobs:
     name: Format
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
         python-version: 3.10.6
diff --git a/.github/workflows/ci-humble.yaml b/.github/workflows/ci-humble.yaml
index cc93a069..80677085 100644
--- a/.github/workflows/ci-humble.yaml
+++ b/.github/workflows/ci-humble.yaml
@@ -17,7 +17,7 @@ jobs:
     container:
       image: ubuntu:22.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup colcon workspace
       id: configure
       run: |