diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f749162..c10d3c8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python_version: [3.8, 3.9, '3.10', 3.11]
+        python_version: ['3.8', '3.9', '3.10', '3.11']
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps: