.travis.yml in cloudcannon-jekyll-0.5.0 vs .travis.yml in cloudcannon-jekyll-1.0.0

@@ -1,9 +1,9 @@
 language: ruby
 cache: bundler
 rvm:
-  - 2.3.8
+  - 2.6
 
 before_install:
   - gem update --system
   - gem install bundler
 
@@ -13,6 +13,7 @@
   global:
     - NOKOGIRI_USE_SYSTEM_LIBRARIES=true
   matrix:
     - JEKYLL_VERSION="2.4.0"
     - JEKYLL_VERSION="3.0.0"
-    - JEKYLL_VERSION="3.2.1"
+    - JEKYLL_VERSION="3.8.5"
+    - JEKYLL_VERSION="4.0.0"