.travis.yml in coupon_code-0.0.1 vs .travis.yml in coupon_code-0.0.2

@@ -3,8 +3,10 @@
 rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.1
 script: 'bundle exec rake'
+before_install:
+  - gem update bundler
 addons:
   code_climate:
     repo_token: 8a7079440da500bd46bff928386a4a512cf5a3c314b4882a2ce7e6fe160b4f45
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