diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e81cb8..f5196d3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
@@ -28,7 +28,7 @@ jobs:
   security-scan:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@v0.36.0
         with:
@@ -43,7 +43,7 @@ jobs:
   cdk-synth:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"