diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 78d79e7..9c74083 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,15 +7,20 @@ on:
         branches: [main]
 
 jobs:
-    readme-tests:
+    cancel-previous-job:
         runs-on: ubuntu-latest
         steps:
             - name: Cancel previous
               uses: styfle/cancel-workflow-action@0.11.0
               with:
                   access_token: ${{ github.token }}
+    readme-tests:
+        runs-on: ubuntu-latest
+        container:
+            image: debian:bullseye
+        steps:
             - name: Checkout sources
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
               with:
                   submodules: 'recursive'
                   lfs: true