diff --git a/.travis.yml b/.travis.yml
index 85f0dd6..a62bde3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,6 @@
 language: ruby
+before_deploy:
+  - gem install mime-types --version "< 3"
 rvm:
   - "2.2.4"
   - "1.9.3"