diff --git a/.travis.yml b/.travis.yml
index 658d0b12..745f3acd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ language: node_js
 node_js:
   - "0.10"
   - "0.12"
+  - "4"
   - "iojs-v2"
   - "iojs-v3"
 addons:
diff --git a/appveyor.yml b/appveyor.yml
index 01fe7902..19e8d3b1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,6 +11,8 @@ environment:
     nodejs_exec: "node"
   - nodejs_version: "0.12"
     nodejs_exec: "node"
+  - nodejs_version: "4"
+    nodejs_exec: "node"
   - nodejs_version: "2"
     nodejs_exec: "iojs"
   - nodejs_version: "3"