diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c9ca89cc..b291a82b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
     needs: lint
     strategy:
       matrix:
-        ckan-version: ["2.11", "2.10", 2.9]
+        ckan-version: ["master", "2.11", "2.10", 2.9]
       fail-fast: false
 
     name: CKAN ${{ matrix.ckan-version }}