diff --git a/.travis.yml b/.travis.yml
index d84e008eec..3c78e576f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,6 @@ language: node_js
 # https://github.com/nodejs/Release
 node_js:
   - '10'
-  - '9'
   - '8'
   - '6'
 
diff --git a/package.json b/package.json
index 46f437ef63..296fe1cb9b 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "mocha": "--check-leaks --full-trace --timeout 15000 src/**/__tests__/**/*-test.js"
   },
   "engines": {
-    "node": "6.x || 8.x || 9.x || >= 10.x"
+    "node": "6.x || 8.x || >= 10.x"
   },
   "scripts": {
     "watch": "babel-node ./resources/watch.js",