diff --git a/package-lock.json b/package-lock.json
index a1b7d15..a513f78 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "sqs-bulk-loader",
-  "version": "3.5.0",
+  "version": "4.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "sqs-bulk-loader",
-      "version": "3.5.0",
+      "version": "4.0.0",
       "license": "ISC",
       "dependencies": {
         "batch-promises": "0.0.3"
diff --git a/package.json b/package.json
index 957e4e1..744dcfb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sqs-bulk-loader",
-  "version": "3.5.0",
+  "version": "4.0.0",
   "description": "A set of functions to help sending bulk messages in sequence or parallel to AWS SQS",
   "main": "src/index.js",
   "scripts": {