diff --git a/package.json b/package.json
index 18da6e9..246837c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jupyterlab-blockly-ipylgbst",
-  "version": "0.1.0",
+  "version": "0.1.0-a0",
   "description": "Blockly extension for JupyterLab to control the Lego Boost, using the ipylgbst library.",
   "keywords": [
     "jupyter",