diff --git a/package.json b/package.json
index e1ff808a..9b21707d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@observablehq/notebook-runtime",
-  "version": "1.7.0",
+  "version": "2.0.0",
   "license": "ISC",
   "main": "dist/notebook-runtime.umd.js",
   "module": "dist/notebook-runtime.js",