diff --git a/package.json b/package.json
index 9f1c8aed8..7385d171b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash",
-  "version": "4.12.0",
+  "version": "4.13.0-pre",
   "license": "MIT",
   "private": true,
   "main": "lodash.js",