diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 10820c9..4f7c9fd 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,6 +19,7 @@ jobs:
                     - php: '7.3'
                     - php: '7.4'
                     - php: '8.0'
+                    - php: '8.1'
         steps:
             - uses: actions/checkout@v2
             - uses: shivammathur/setup-php@v2