diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6c0b2ea..42a21b1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
   unit-tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.13
         uses: actions/setup-python@v5