diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7707857..8f3936e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: [3.8, 3.9, 3.10]
+        python-version: [3.8, 3.9, '3.10']
     steps:
       - name: Checkout
         uses: actions/checkout@v2