diff --git a/.travis.yml b/.travis.yml
index fe532b2..5456a02 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,7 @@
 language: ruby
+# Temporary workaround for minitest 4.7.5 installation error on ruby 2.1.0
+before_install:
+  - gem install bundler -v '>= 1.5.1'
 rvm:
   - 1.9.3
   - 2.0.0