diff --git a/.travis.yml b/.travis.yml
index 2594341..1829da5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ sudo: false
 node_js:
   - '0.12'
   - '4'
-  - '5'
+  - '6'
 env:
   global:
     - CXX=g++-4.8
diff --git a/appveyor.yml b/appveyor.yml
index 47ad991..6b5879a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,7 +10,7 @@ init:
 environment:
   matrix:
     - nodejs_version: "0.12"
-    - nodejs_version: "5"
+    - nodejs_version: "6"
 
 # Install scripts. (runs after repo cloning)
 install: