diff --git a/.travis.yml b/.travis.yml
index 51a0ed20..98094771 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: node_js
 node_js:
+  - "8"
   - "10"
   - "12"
   - "13"
diff --git a/README.md b/README.md
index a1e5b56c..4b926ea8 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ Supported platforms
 
 And you can test your current browser visiting the [test page](http://benjamine.github.com/jsondiffpatch/test/index.html).
 
-* Node.js [![Build Status](https://secure.travis-ci.org/benjamine/jsondiffpatch.svg)](http://travis-ci.org/benjamine/jsondiffpatch) v4.8+
+* Node.js [![Build Status](https://secure.travis-ci.org/benjamine/jsondiffpatch.svg)](http://travis-ci.org/benjamine/jsondiffpatch) v8+
 
 Usage
 -----
diff --git a/package.json b/package.json
index ece19ce6..2b15b76f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jsondiffpatch",
-  "version": "0.3.11",
+  "version": "0.4.0",
   "author": "Benjamin Eidelman <beneidel@gmail.com>",
   "description": "Diff & Patch for Javascript objects",
   "contributors": [
@@ -80,7 +80,7 @@
   "bundleDependencies": [],
   "license": "MIT",
   "engines": {
-    "node": ">=4.8.0"
+    "node": ">=8.17.0"
   },
   "homepage": "https://github.com/benjamine/jsondiffpatch"
 }