diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index ec5dcc4..b109f8c 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -17,7 +17,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.10
+        python-version: '3.10'
     - name: Install Pandana
       run: |
         pip install .