diff --git a/.github/workflows/deforaos-c-ci_ubuntu-latest.yml b/.github/workflows/deforaos-c-ci_ubuntu-latest.yml
index 1b8751d..129c459 100644
--- a/.github/workflows/deforaos-c-ci_ubuntu-latest.yml
+++ b/.github/workflows/deforaos-c-ci_ubuntu-latest.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: initialize sub-modules
       run: git submodule init
     - name: update sub-modules