diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 49a23d7..ec96218 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -35,7 +35,8 @@ jobs:
                 name: Restrict Symfony version
                 if: matrix.symfony != ''
                 run: |
-                    composer global require --no-progress --no-scripts --no-plugins "symfony/flex:^1.17.1"
+                    composer global config --no-plugins allow-plugins.symfony/flex true
+                    composer global require --no-progress --no-scripts --no-plugins "symfony/flex:1.18.5"
                     composer config extra.symfony.require "${{ matrix.symfony }}"
 
             -
diff --git a/composer.json b/composer.json
index 9416991..9ed282b 100644
--- a/composer.json
+++ b/composer.json
@@ -74,7 +74,8 @@
     },
     "config": {
         "allow-plugins": {
-            "symfony/flex": true
+            "symfony/flex": true,
+            "dealerdirect/phpcodesniffer-composer-installer": false
         }
     }
 }