diff --git a/.travis.yml b/.travis.yml
index 987a42ed..71f63bc7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ addons:
 
 env:
   global:
-    - CORE_RELEASE=3.5
+    - CORE_RELEASE=3
 
 matrix:
   include: