diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ee0d703..258666f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -37,6 +37,7 @@ jobs:
 
       # Install Flex as a global dependency to enable usage of extra.symfony.require
       # while keeping Flex recipes from applying
+      - run: composer global config --no-plugins allow-plugins.symfony/flex true
       - run: composer global require --no-scripts symfony/flex
 
       - run: composer config extra.symfony.require ${{ matrix.symfony }}