diff --git a/.travis.yml b/.travis.yml
index 3e64255aa..fe5dae337 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,9 @@ language: node_js
 node_js:
     - "0.10"
     - "0.12"
-    - "4.x"
-    - "5.x"
-    - "6.x"
+    - "4.4.3"
+    - "5.9.1"
+    - "6.0.0"
 
 cache:
   directories: