diff --git a/.travis.yml b/.travis.yml
index 4c6a070..e4a1fdb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,9 +7,10 @@ rvm:
   - 2.1.10
   - 2.2.10
   - 2.3.8
-  - 2.4.5
-  - 2.5.3
-  - ruby-2.6.0-preview2
+  - 2.4.9
+  - 2.5.7
+  - 2.6.5
+  - ruby-2.7.0-preview2
   - jruby-19mode
 
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