diff --git a/.gitea/workflows/run-tests.yml b/.gitea/workflows/run-tests.yml
index f1460da..1ffd740 100644
--- a/.gitea/workflows/run-tests.yml
+++ b/.gitea/workflows/run-tests.yml
@@ -12,6 +12,8 @@ jobs:
   test:
     name: Run Tests
     runs-on: ubuntu-latest
+    container:
+      image: python:3.9
 
     steps:
       - name: Checkout code