diff --git a/package.json b/package.json
index 70b5069..a3f07f0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ibt2",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "I'll be there, 2: an oversimplified application to register attendees at a conference or event",
   "author": "Davide Alberani <da@erlug.linux.it>",
   "license": "Apache-2.0",
@@ -36,6 +36,8 @@
   "devDependencies": {
     "autoprefixer": "^6.7.7",
     "babel-cli": "^6.26.0",
+    "babel-loader": "^7.1.2",
+    "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.6.0",
     "chalk": "^1.1.3",
     "connect-history-api-fallback": "^1.3.0",