diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 52943cd..0c5e674 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -105,6 +105,7 @@ jobs:
                 name: Restrict Symfony version
                 if: matrix.symfony != ''
                 run: |
+                    composer global config --no-plugins allow-plugins.symfony/flex true
                     composer global require --no-progress --no-scripts --no-plugins "symfony/flex:^1.10"
                     composer config extra.symfony.require "${{ matrix.symfony }}"
             -