.travis.yml in grape-swagger-1.2.0 vs .travis.yml in grape-swagger-1.2.1

@@ -11,13 +11,14 @@
 rvm:
   - 2.5.8
   - 2.6.6
   - 2.7.1
 env:
-  - 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=1.3.3
+  - GRAPE_VERSION=1.4.0 MODEL_PARSER=grape-swagger-entity
+  - GRAPE_VERSION=1.4.0 MODEL_PARSER=grape-swagger-representable
+  - GRAPE_VERSION=1.4.0
   - GRAPE_VERSION=HEAD
 
 jobs:
   fast_finish: true
 
@@ -31,7 +32,5 @@
 
   allow_failures:
     - rvm: 2.4.10
     - rvm: ruby-head
     - rvm: jruby-head
-
-    - env: GRAPE_VERSION=HEAD