diff --git a/.travis.yml b/.travis.yml
index 933da96..c45c822 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: ruby
-rvm: 2.3
+rvm: 2.2.5
 services:
   - elasticsearch
   - mongodb
--
libgit2 0.21.0