.travis.yml in search_lingo-2.0.0.pre3 vs .travis.yml in search_lingo-2.0.0

@@ -1,5 +1,5 @@
 language: ruby
 rvm:
-  - 2.3.7
-  - 2.4.4
-  - 2.5.1
+  - 2.3.8
+  - 2.4.5
+  - 2.5.3