diff --git a/.travis.yml b/.travis.yml
index 8021ccb..cc42097 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@ php:
 
 env:
   global:
-    - MOODLE_BRANCH=master
+    - MOODLE_BRANCH=MOODLE_37_STABLE
     - MUSTACHE_IGNORE_NAMES=mobile_teacher_form.mustache
   matrix:
     - DB=pgsql