diff --git a/pxt.json b/pxt.json
index 3e878b09f..e7e54b6de 100644
--- a/pxt.json
+++ b/pxt.json
@@ -1,6 +1,6 @@
 {
     "name": "jacdac",
-    "version": "0.3.1",
+    "version": "0.4.0",
     "description": "JACDAC for MakeCode",
     "dependencies": {
         "core": "*",