diff --git a/.travis.yml b/.travis.yml
index 5d970a2..c60f507 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 sudo: false
 language: node_js
 node_js:
-  - "4"
   - "6"
-  - "7"
+  - "8"
+  - "10"
diff --git a/README.md b/README.md
index d614498..da92ab0 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,14 @@ In production mode, `strong-error-handler` omits details from error responses to
 
 In debug mode, `strong-error-handler` returns full error stack traces and internal details of any error objects to the client in the HTTP responses.
 
+## Supported versions
+
+Current|Long Term Support|Maintenance
+:-:|:-:|:-:
+3.x|2.x|1.x
+
+Learn more about our LTS plan in [docs](http://loopback.io/doc/en/contrib/Long-term-support.html).
+
 ## Installation
 
 ```bash
diff --git a/package.json b/package.json
index 541ccbe..21c88c3 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "license": "MIT",
   "version": "2.3.2",
   "engines": {
-    "node": ">=4"
+    "node": ">=6"
   },
   "repository": {
     "type": "git",
@@ -18,19 +18,19 @@
   },
   "dependencies": {
     "accepts": "^1.3.3",
-    "debug": "^2.2.0",
-    "ejs": "^2.5.7",
-    "http-status": "^1.0.0",
+    "debug": "^3.1.0",
+    "ejs": "^2.6.1",
+    "http-status": "^1.1.2",
     "js2xmlparser": "^3.0.0",
-    "strong-globalize": "^3.1.0"
+    "strong-globalize": "^4.1.0"
   },
   "devDependencies": {
-    "chai": "^3.5.0",
-    "eslint": "^3.14.1",
-    "eslint-config-loopback": "^8.0.0",
-    "express": "^4.13.4",
-    "mocha": "^3.2.0",
-    "supertest": "^3.0.0"
+    "chai": "^4.1.2",
+    "eslint": "^4.19.1",
+    "eslint-config-loopback": "^10.0.0",
+    "express": "^4.16.3",
+    "mocha": "^5.2.0",
+    "supertest": "^3.1.0"
   },
   "browser": {
     "strong-error-handler": false
diff --git a/test/handler.test.js b/test/handler.test.js
index c8b9ffd..e8d0448 100644
--- a/test/handler.test.js
+++ b/test/handler.test.js
@@ -16,6 +16,7 @@ var util = require('util');
 describe('strong-error-handler', function() {
   before(setupHttpServerAndClient);
   beforeEach(resetRequestHandler);
+  after(stopHttpServerAndClient);
 
   it('sets nosniff header', function(done) {
     givenErrorHandlerForError();
@@ -786,7 +787,7 @@ describe('strong-error-handler', function() {
   });
 });
 
-var app, _requestHandler, request;
+var app, _requestHandler, request, server;
 function resetRequestHandler() {
   _requestHandler = null;
 }
@@ -834,7 +835,7 @@ function setupHttpServerAndClient(done) {
     }
   });
 
-  app.listen(0, function() {
+  server = app.listen(0, function() {
     var url = 'http://127.0.0.1:' + this.address().port;
     debug('Test server listening on %s', url);
     request = supertest(app);
@@ -846,6 +847,10 @@ function setupHttpServerAndClient(done) {
   });
 }
 
+function stopHttpServerAndClient() {
+  server.close();
+}
+
 function ErrorWithProps(props) {
   this.name = props.name || 'ErrorWithProps';
   for (var p in props) {