.travis.yml in regexp-examples-1.4.3 vs .travis.yml in regexp-examples-1.4.4

@@ -1,12 +1,13 @@
 language: ruby
 rvm:
   - 2.0.0
   - 2.1.10
-  - 2.2.9
-  - 2.3.6
-  - 2.4.3
-  - 2.5.0
+  - 2.2.10
+  - 2.3.8
+  - 2.4.5
+  - 2.5.3
+  - 2.6.0
   - ruby-head
 matrix:
   allow_failures:
     - rvm: ruby-head