.travis.yml in geoblacklight_sidecar_images-0.5.0 vs .travis.yml in geoblacklight_sidecar_images-0.5.1

@@ -6,23 +6,23 @@
 
 notifications:
   email: false
 
 rvm:
-  - 2.4.3
+  - 2.4.5
 
 matrix:
   include:
-    - rvm: 2.3.6
-      env: "RAILS_VERSION=5.0.6"
+    - rvm: 2.4.5
+      env: "RAILS_VERSION=5.2.1"
 
 before_install:
   - gem update --system
   - gem install bundler
   - google-chrome-stable --headless --disable-gpu --remote-debugging-port=9222 http://localhost &
 
 env:
- - "RAILS_VERSION=5.1.4 "
+ - "RAILS_VERSION=5.2.1 "
 
 global_env:
   - NOKOGIRI_USE_SYSTEM_LIBRARIES=true
 
 jdk: oraclejdk8