diff --git a/.github/workflows/run-cn-examples.yml b/.github/workflows/run-cn-examples.yml
index 1e53579..da92a18 100644
--- a/.github/workflows/run-cn-examples.yml
+++ b/.github/workflows/run-cn-examples.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         repository: rems-project/cn
 
@@ -73,7 +73,7 @@ jobs:
         opam install --yes cn
 
     - name: Checkout cn-tutorial
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         path: cn-tutorial