diff --git a/.github/workflows/code_style_check.yaml b/.github/workflows/code_style_check.yaml
index 361534a4..c89dc858 100644
--- a/.github/workflows/code_style_check.yaml
+++ b/.github/workflows/code_style_check.yaml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: shivammathur/setup-php@v2
         with:
-          php-version: 7.3
+          php-version: 8.1
           coverage: none # disable xdebug, pcov
       - run: composer install --no-progress
       # fix code style, automatically