diff --git a/.travis.yml b/.travis.yml
index 688315d..2d8fc1b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ matrix:
     - rvm: 2.3.5
     - rvm: 2.4.6
     - rvm: 2.5.5
-    - rvm: 2.6.2
+    - rvm: 2.6.3
     - rvm: jruby-9.1.8.0
       env:
         - JRUBY_OPTS="--debug"