diff --git a/.github/workflows/php-ci.yml b/.github/workflows/php-ci.yml
index a2d5f26..31e7678 100644
--- a/.github/workflows/php-ci.yml
+++ b/.github/workflows/php-ci.yml
@@ -45,7 +45,7 @@ jobs:
               run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
             - name: Cache Composer dependencies
-              uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+              uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v5
               with:
                   path: ${{ steps.composer-cache.outputs.dir }}
                   key: php-${{ matrix.php }}-${{ matrix.deps }}-composer-${{ hashFiles('packages/php/composer.lock') }}