diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e436f3cd..bcefff65 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - if: ${{ matrix.versions.python != '2.6' }}
         run: |
           docker build \