diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 605c870..438df77 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.10]
+        python-version: ['3.10']
         poetry-version: [1.3.1]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}