.travis.yml in mrkt-0.10.0 vs .travis.yml in mrkt-0.11.0

@@ -5,7 +5,9 @@
   - 2.5.0
   - 2.6.0
 addons:
   code_climate:
     repo_token: 45cd2174f49b570406e294ff393d456c4ae8532cf16dd6430abb06d8a0722a28
+before_install:
+  - gem update --system
 after_success:
   - bundle exec codeclimate-test-reporter