diff --git a/.travis.yml b/.travis.yml
index de35ef7f5..c6aabca78 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,11 +2,14 @@ language: php
 services:
     - mysql
 php:
+    - 5.6
     - 7
 env:
     matrix:
         - CORE_BRANCH=master DB=sqlite 
+        - CORE_BRANCH=master DB=mysql
         - CORE_BRANCH=stable11 DB=sqlite 
+        - CORE_BRANCH=stable11 DB=mysql 
 
 before_install:
     # install core