.travis.yml in sym-2.8.4 vs .travis.yml in sym-2.8.5

@@ -6,10 +6,10 @@
 - memcached
 rvm:
 - 2.2.9
 - 2.3.6
 - 2.4.3
-- 2.5.0
+- 2.5.1
 notifications:
   email:
     recipients:
     - [e-mail]
     on_success: change