diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index a86df6a2..63e50ea2 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -33,7 +33,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ 3.7, 3.8, 3.9, 3.10, 3.11-dev ]
+        python-version: [ 3.7, 3.8, 3.9, '3.10', 3.11-dev ]
         os: [ ubuntu-latest, macos-latest, windows-latest ]
 
     steps: