diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 28c1517..0adb9e9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: ['8.0']
+        php: ['7.0', '7.1', '7.2', '7.3', '7.4', '8.0']
     name: PHP ${{ matrix.php }}
 
     steps: