diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 3a0aeae..fa81f7e 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -75,6 +75,9 @@ jobs:
           extensions: mbstring
           php-version: "${{ matrix.php-version }}"
 
+      - if: "! startsWith(matrix.php-version, 8)"
+        run: composer remove --dev --no-update mll-lab/graphql-php-scalars
+
       - run: composer require "illuminate/support:${{ matrix.illuminate }}" --no-interaction --no-update
 
       - if: matrix.dependencies == 'lowest'