diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 51736c31..5eea06a4 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -12,7 +12,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, pypy3]
+        python-version:
+          - '3.4'
+          - '3.5'
+          - '3.6'
+          - '3.7'
+          - '3.8'
+          - '3.9'
+          - '3.10'
+          - 'pypy3'
 
     steps:
       - uses: actions/checkout@v2