diff --git a/.travis.yml b/.travis.yml
index 0f78e31..dbf71dc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: ruby
 rvm:
   - 2.2.4
+services:
+  - redis-server
 sudo: required
 dist: trusty
 before_install: