diff --git a/package-lock.json b/package-lock.json
index 728187e..795003a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "json-csv",
-  "version": "4.0.20",
+  "version": "4.0.21-alpha.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a0dc5a5..33a8dff 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "json-csv",
-  "version": "4.0.20",
+  "version": "4.0.21-alpha.1",
   "description": "Easily convert JSON array to CSV in Node.JS via buffered or streaming.",
   "homepage": "https://github.com/IWSLLC/json-csv",
   "author": "Nathan Bridgewater <info@iws.io> (http://iws.io/)",