diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 504116a..2545a09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        python: [3.8', '3.9', '3.10', '3.11', '3.12']
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
       - uses: actions/checkout@v3
         with: