diff --git a/.travis.yml b/.travis.yml
index a3c951961..d7d17370d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,7 @@ matrix:
       rvm: 2.0
     - env: RAILS_VERSION="~>5.0.0"
       rvm: 2.1
-before_install: gem install bundler
+before_install: gem install bundler --version 1.17.3
 notifications:
   email:
     recipients: