diff --git a/.github/workflows/next.yml b/.github/workflows/next.yml
index 53ddc0f..f819a75 100644
--- a/.github/workflows/next.yml
+++ b/.github/workflows/next.yml
@@ -14,10 +14,10 @@ env:
 jobs:
   perform_tests:
     name: Run tests on kas code
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11"]
     steps:
       - name: Check out repo
         uses: actions/checkout@v2