diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 559591bf74..ef17569537 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         operating-system: ['ubuntu-18.04', 'ubuntu-20.04']
-        php-versions: ['7.4','8.0']
+        php-versions: ['7.4','8.0','8.1']
         phpunit-versions: ['latest']
 
     env: