diff --git a/.github/workflows/Build-Test.yml b/.github/workflows/Build-Test.yml
index 95a00f8..e527d1b 100644
--- a/.github/workflows/Build-Test.yml
+++ b/.github/workflows/Build-Test.yml
@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-20.04]
-        php-versions: ['7.2', '7.3', '7.4', '8.0']
+        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1']
         include:
           - operating-system: ubuntu-16.04
             php-versions: '7.1'