diff --git a/package.json b/package.json
index b5b0fa34..f1be909e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "unified",
-  "version": "9.2.1",
+  "version": "10.0.0-beta.1",
   "description": "Interface for parsing, inspecting, transforming, and serializing content through syntax trees",
   "license": "MIT",
   "keywords": [