diff --git a/.travis.yml b/.travis.yml
index 09c0813f..53634415 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,10 @@
 language: node_js
 
 node_js:
-  - 4
   - 6
   - 8
   - 9
+  - 10
 
 jobs:
   include:
diff --git a/appveyor.yml b/appveyor.yml
index f55b8a4b..4f27e5df 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -2,10 +2,10 @@ version: "{build}"
 build: off
 environment:
   matrix:
-    - nodejs_version: "4"
     - nodejs_version: "6"
     - nodejs_version: "8"
     - nodejs_version: "9"
+    - nodejs_version: "10"
 install:
   - ps: Install-Product node $env:nodejs_version
   - npm install
diff --git a/package.json b/package.json
index 7d6bf007..43ff0fc3 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,6 @@
   },
   "dependencies": {},
   "engines": {
-    "node": ">=4.6.0"
+    "node": ">=6.0.0"
   }
 }