diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2b09277..7404090 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, ubuntu-latest]
-        python-version: [3.7, 3.10, 3.11]
+        python-version: ["3.7", "3.10", "3.11"]
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps: