diff --git a/.github/workflows/format_code.yaml b/.github/workflows/format_code.yaml
index d7ec8b9..4bd04d2 100644
--- a/.github/workflows/format_code.yaml
+++ b/.github/workflows/format_code.yaml
@@ -4,7 +4,7 @@ jobs:
   format-code:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: psf/black@stable
         with:
           options: "--check --diff"