diff --git a/.travis.yml b/.travis.yml
index acf9276ec2..824bbdff9f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,6 @@ cache:
     - node_modules
 
 node_js:
-  - "6"
   - "8"
   - "10"
   - "node"
diff --git a/appveyor.yml b/appveyor.yml
index 41df437b19..8c3875e29e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,7 +8,6 @@ image:
 # Test against these versions of Node.js.
 environment:
   matrix:
-    - nodejs_version: "6"
     - nodejs_version: "8"
     - nodejs_version: "10"
     - nodejs_version: "11"
diff --git a/package.json b/package.json
index ecbd21a942..8055d6b49b 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "sinon": "^7.1.1"
   },
   "engines": {
-    "node": ">=6.9.0"
+    "node": ">=8.6.0"
   },
   "husky": {
     "hooks": {