diff --git a/.travis.yml b/.travis.yml
index 63f7b3503848522f177a25c79d96732d09071fc2..4909f83cab4e49493ebb2c085ececeecfd41df8e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,3 @@
 language: node_js
 node_js:
-  - "4"
+  - "6"