diff --git a/packages/squiggle-lang/package.json b/packages/squiggle-lang/package.json
index bd4d63ec..47545ba7 100644
--- a/packages/squiggle-lang/package.json
+++ b/packages/squiggle-lang/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@quri/squiggle-lang",
-  "version": "0.4.2",
+  "version": "0.5.0-alpha.0",
   "homepage": "https://squiggle-language.com",
   "license": "MIT",
   "scripts": {