.travis.yml in rack-dev-mark-0.7.6 vs .travis.yml in rack-dev-mark-0.7.7

@@ -1,20 +1,19 @@
 language: ruby
 
 rvm:
   - 2.2
   - 2.3
-  - 2.4.0
+  - 2.4
+  - 2.5
 
 install:
   - "gem install bundler"
   - "bundle install --jobs=3 --retry=3"
 
 env:
   -
-  - RACK_VERSION=1.1.0
-  - RACK_VERSION=1.2.0
   - RACK_VERSION=1.3.0
   - RACK_VERSION=1.4.0
   - RACK_VERSION=1.5.0
   - RACK_VERSION=1.6.0
   - RACK_VERSION=2.0.0
@@ -26,17 +25,17 @@
   - RAILS_VERSION=5.1.0
   - I18N_VERSION=0.6.0
 
 matrix:
   allow_failures:
-    - rvm: 2.4.0
-      env: RAILS_VERSION=3.2.0
-    - rvm: 2.4.0
+    - rvm: 2.4
       env: RAILS_VERSION=4.0.0
-    - rvm: 2.4.0
+    - rvm: 2.4
       env: RAILS_VERSION=4.1.0
-    - rvm: 2.4.0
-      env: RAILS_VERSION=4.2.0
+    - rvm: 2.5
+      env: RAILS_VERSION=4.0.0
+    - rvm: 2.5
+      env: RAILS_VERSION=4.1.0
 
 script: "bundle exec rake spec"
 
 branches:
   only: