diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e30738cc..aef10684 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,7 +5,7 @@ jobs:
     name: runner & black formatter
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: psf/black@stable
         with:
           black_args: ". --check"