diff --git a/.travis.yml b/.travis.yml
index a3aad0da..5fcf92f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,6 @@ node_js:
   - "9"
   - "8"
   - "6"
-  - "4"
 sudo: required
 services:
   - docker
diff --git a/package.json b/package.json
index 100fb61c..7750f6da 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "uuid": "^3.0.0"
   },
   "engines": {
-    "node": ">=4.5.0"
+    "node": ">=6.4.0"
   },
   "optionalDependencies": {
     "snappy": "^6.0.1"