diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a598a8330..01ccd1ce6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,9 @@ on:
 
 name: CI
 
+env:
+  COMPOSER_ROOT_VERSION: "10.x-dev"
+
 jobs:
   coding-guidelines:
     name: Coding Guidelines