diff --git a/lib/version.js b/lib/version.js
index 9649b816..5e4aa947 100644
--- a/lib/version.js
+++ b/lib/version.js
@@ -1 +1 @@
-module.exports = "0.8.4";
+module.exports = "0.8.5-pre";
diff --git a/package.json b/package.json
index 908f6583..017b9618 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dagre",
-  "version": "0.8.4",
+  "version": "0.8.5-pre",
   "description": "Graph layout for JavaScript",
   "author": "Chris Pettitt <cpettitt@gmail.com>",
   "contributors": [
@@ -42,4 +42,4 @@
     "url": "https://github.com/dagrejs/dagre.git"
   },
   "license": "MIT"
-}
+}
\ No newline at end of file