diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 2adf218..0e4a3ae 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -7,7 +7,7 @@ jobs:
   run-test:
     strategy:
       matrix:
-        python-version: [ 3.10, 3.11, 3.12 ]
+        python-version: [ "3.10", "3.11", "3.12" ]
         os: [ ubuntu-latest ]
       fail-fast: false
     runs-on: ${{ matrix.os }}