diff --git a/packages/datafile-manager/package.json b/packages/datafile-manager/package.json
index be468c53b..59ecfa03c 100644
--- a/packages/datafile-manager/package.json
+++ b/packages/datafile-manager/package.json
@@ -4,7 +4,7 @@
   "description": "Optimizely Full Stack Datafile Manager",
   "license": "Apache-2.0",
   "engines": {
-    "node": ">=6.0.0"
+    "node": ">=8.0.0"
   },
   "main": "lib/index.node.js",
   "browser": "lib/index.browser.js",
diff --git a/packages/optimizely-sdk/package.json b/packages/optimizely-sdk/package.json
index f0751fea2..9b09fe9b3 100644
--- a/packages/optimizely-sdk/package.json
+++ b/packages/optimizely-sdk/package.json
@@ -25,7 +25,7 @@
   },
   "license": "Apache-2.0",
   "engines": {
-    "node": ">=4.0.0"
+    "node": ">=8.0.0"
   },
   "keywords": [
     "optimizely"