diff --git a/package.json b/package.json
index 352cfee9..f953228c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ion-js",
-  "version": "5.1.0",
+  "version": "5.2.0-SNAPSHOT",
   "description": "A JavaScript implementation of the Ion data interchange format",
   "main": "dist/commonjs/es6/Ion.js",
   "types": "dist/commonjs/es6/Ion.d.ts",