diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 6e0640e..53cf3d1 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -9,7 +9,7 @@ jobs:
   ISO:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Build
         run: sudo ./build_in_docker.sh