diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index cc008c50..56fb04c0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        php: ['7.4', '8.0']
+        php: ['7.4', '8.0', '8.1']
         dependency-version: [prefer-stable]
 
     steps: