diff --git a/.travis.yml b/.travis.yml
index d7d17370d..57c60f7cc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,9 @@ matrix:
       rvm: 2.0
     - env: RAILS_VERSION="~>5.0.0"
       rvm: 2.1
-before_install: gem install bundler --version 1.17.3
+before_install:
+  - gem uninstall -a -x bundler
+  - gem install bundler --version 1.17.3
 notifications:
   email:
     recipients: