.travis.yml in grape-swagger-0.34.2 vs .travis.yml in grape-swagger-1.0.0

@@ -1,7 +1,9 @@
 language: ruby
 
+os: linux
+
 before_install:
   - gem install bundler
 
 after_success:
   - bundle exec danger
@@ -9,22 +11,22 @@
 rvm:
   - 2.5.7
   - 2.6.5
   - 2.7.0
 env:
-  - GRAPE_VERSION=1.2.5 MODEL_PARSER=grape-swagger-entity
-  - GRAPE_VERSION=1.2.5 MODEL_PARSER=grape-swagger-representable
-  - GRAPE_VERSION=1.0.3
-  - GRAPE_VERSION=1.2.5
+  - GRAPE_VERSION=1.3.0 MODEL_PARSER=grape-swagger-entity
+  - GRAPE_VERSION=1.3.0 MODEL_PARSER=grape-swagger-representable
+  - GRAPE_VERSION=1.3.0
+  - GRAPE_VERSION=HEAD
 
-matrix:
+jobs:
   fast_finish: true
 
   include:
     - rvm: 2.4.9
-      env: GRAPE_VERSION=1.2.5
+      env:
     - rvm: ruby-head
-      env: GRAPE_VERSION=HEAD
+      env:
     - rvm: jruby-head
       env:
 
   allow_failures:
     - rvm: 2.4.9