diff --git a/.github/workflows/test_gridpath.yml b/.github/workflows/test_gridpath.yml
index 947973ba2..1cf2e6025 100644
--- a/.github/workflows/test_gridpath.yml
+++ b/.github/workflows/test_gridpath.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ "3.9", "3.10" ]
+        python-version: [ "3.9", "3.10", "3.11" ]
 
     steps:
     - uses: actions/checkout@v3