diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index fff8f46..09adf4d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,7 +9,7 @@ jobs:
       fail-fast: false
       matrix:
         laravel: [6, 7, 8]
-        php: [7.3, 7.4, 8.0]
+        php: [7.3, 7.4, "8.0"]
 
     steps:
       - uses: actions/checkout@v2