diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 9e4bf6c..90fbe8b 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -16,6 +16,7 @@ jobs:
         php-version:
           - "7.4"
           - "8.0"
+          - "8.1"
         dependencies:
           - "highest"
         include: