diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ab56ab9..3df1f59 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,22 +1,17 @@
 name: Tests
+
 on: pull_request
+
 jobs:
   phpunit:
     name: PHP ${{ matrix.php }}
+
     runs-on: ubuntu-latest
+
     strategy:
       matrix:
-        php:
-          - "5.3"
-          - "5.4"
-          - "5.5"
-          - "5.6"
-          - "7.0"
-          - "7.1"
-          - "7.2"
-          - "7.3"
-          - "7.4"
-          - "8.0"
+        php: ['5.3', '5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.3', '8.4', '8.5']
+
     steps:
       - name: Checkout
         uses: actions/checkout@v2