diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 0cb2f9ce..d186ae45 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -9,7 +9,7 @@ jobs:
             fail-fast: true
             matrix:
                 os: [ubuntu-latest]
-                php: [8.0, 7.4]
+                php: [8.1, 8.0, 7.4]
                 stability: [prefer-lowest, prefer-stable]
 
         name: P${{ matrix.php }} - ${{ matrix.stability }} - ${{ matrix.os }}