.travis.yml in pokemon_tcg_sdk-1.0.0 vs .travis.yml in pokemon_tcg_sdk-2.0.0

@@ -1,4 +1,4 @@
 language: ruby
 rvm:
   - 2.3.0
-before_install: gem install bundler -v 1.11.2
+before_install: gem install bundler -v 1.12.5