diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 348313bf..6624c08a 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -45,7 +45,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['8.0']
+        php: ['8.0', '8.1']
     steps:
     - name: Checkout code
       uses: actions/checkout@v2