diff --git a/.travis.yml b/.travis.yml
index 33606146f..822d4bbf7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ addons:
   firefox: "latest"
 env:
   global:
-    - CORE_BRANCH=master
+    - CORE_BRANCH=stable17
     - APP_NAME=gallery
     - SERVER_FOLDER=server
     - CLOUD=nextcloud