diff --git a/.travis.yml b/.travis.yml
index 9806f55..92ea339 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,9 +10,9 @@ services:
 
 rvm:
   - 2.3.8
-  - 2.4.6
-  - 2.5.5
-  - 2.6.3
+  - 2.4.9
+  - 2.5.7
+  - 2.6.5
   - ruby-head
 
 matrix: