diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index fb7c90c..d33110b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -83,7 +83,7 @@ jobs:
       working-directory: ./laravel_app
 
     - name: Validate composer.json format
-      run: php -r "json_decode(file_get_contents('composer.json')) ?: exit(1);"
+      run: php -r 'json_decode(file_get_contents("composer.json")) ?: exit(1);'
       working-directory: ./laravel_app
 
     - name: Remove composer.lock and re-run composer install