diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7d2e98d3..71fa71a9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        php: [ "8.0", "7.4", "7.3", "7.2" ]
+        php: [ "8.1", "8.0", "7.4", "7.3", "7.2" ]
 
     name: PHP ${{ matrix.php }} - ${{ matrix.os }}
     runs-on: ${{ matrix.os }}