appveyor.yml in active_model_serializers-0.10.0.rc3 vs appveyor.yml in active_model_serializers-0.10.0.rc4

@@ -2,24 +2,26 @@
 
 skip_tags: true
 
 environment:
   matrix:
-    - ruby_version: "193"
-    - ruby_version: "193-x64"
     - ruby_version: "200"
     - ruby_version: "200-x64"
     - ruby_version: "21"
     - ruby_version: "21-x64"
 
+cache:
+  - vendor/bundle
+
 install:
   - SET PATH=C:\Ruby%ruby_version%\bin;%PATH%
   - ruby --version
   - gem --version
   - gem install bundler
   - bundler --version
-  - bundle install --retry=3
+  - bundle platform
+  - bundle install --path=vendor/bundle --retry=3 --jobs=3
 
 test_script:
-  - bundle exec rake
+  - bundle exec rake ci
 
 build: off