diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 72f1021..ad157fc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,8 +12,8 @@ jobs:
     strategy:
       matrix:
         php_version:
-          - 7.4
-          - 8.0
+          - "8.0"
+          - "8.1"
     steps:
       - name: Checkout
         uses: actions/checkout@v2