diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 3027b81..1ca3a59 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -20,7 +20,7 @@ jobs:
           - "7.3"
           - "7.4"
           - "8.0"
-          - "8.1-rc"
+          - "8.1"
         operating-system:
           - "ubuntu-latest"
           - "windows-latest"