.travis.yml in dynamoid-1.3.3 vs .travis.yml in dynamoid-1.3.4

- old
+ new

@@ -1,13 +1,13 @@
 language: ruby
 rvm:
   - ruby-2.0.0-p648
   - ruby-2.1.10
-  - ruby-2.2.6
-  - ruby-2.3.3
+  - ruby-2.2.7
+  - ruby-2.3.4
   - ruby-2.4.1
-  - jruby-9.1.8.0
+  - jruby-9.1.9.0
 gemfile:
   - gemfiles/rails_4_0.gemfile
   - gemfiles/rails_4_1.gemfile
   - gemfiles/rails_4_2.gemfile
   - gemfiles/rails_5_0.gemfile
@@ -19,10 +19,10 @@
       gemfile: gemfiles/rails_5_0.gemfile
     - rvm: ruby-2.4.1
       gemfile: gemfiles/rails_4_0.gemfile
     - rvm: ruby-2.4.1
       gemfile: gemfiles/rails_4_1.gemfile
-before_install: gem install bundler -v 1.14.6
+before_install: gem install bundler -v 1.15.4
 install:
   - wget http://dynamodb-local.s3-website-us-west-2.amazonaws.com/dynamodb_local_latest.zip --quiet -O spec/dynamodb_temp.zip
   - unzip -qq spec/dynamodb_temp.zip -d spec/DynamoDBLocal-latest
   - rm spec/dynamodb_temp.zip
 script: