diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c3c1845d..b939ddbf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,9 +23,7 @@ jobs:
           coverage: xdebug
 
       - name: Install Dependencies
-        env:
-          COMPOSER: composer-dev.json
-        run: composer install --no-interaction --prefer-dist --optimize-autoloader
+        run: COMPOSER=${{ github.workspace }}/composer-dev.json composer install --no-interaction --prefer-dist --optimize-autoloader
 
       - name: PHPCS checks
         run: ./vendor/bin/phpcs ${{ github.workspace }}/src/WordPress