diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index b99c640..87a4aa3 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -14,7 +14,7 @@ jobs:
         dependency-version: [prefer-lowest, prefer-stable]
         include:
           - laravel: 8.*
-            testbench: 6.*
+            testbench: ^6.23
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.dependency-version }} - ${{ matrix.os }}