diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0aa500c..9fda2f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python: [3.7, 3.8, 3.9, 3.10]
+        python: [3.7, 3.8, 3.9, '3.10']
       fail-fast: false