diff --git a/.github/workflows/code_check.yml b/.github/workflows/code_check.yml
index 32c3ba1..a7dd83a 100644
--- a/.github/workflows/code_check.yml
+++ b/.github/workflows/code_check.yml
@@ -11,8 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11"]
-
+        python-version: [ "3.11" ]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}