Fix builds in Ruby 2.5

davidcelis · davidcelis · commit 37a692e712a6 · 2018-04-15T10:50:44.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,7 +5,7 @@ services:
 
 before_install:
   - gem update --system
-  - gem update bundler
+  - gem install bundler
 
 rvm:
   - 2.3
