lock version

Author: PeterStaev

demo-ng/package.json

@@ -38,7 +38,7 @@
     "nativescript-drop-down": "file:../bin/dist",
     "reflect-metadata": "~0.1.8",
     "rxjs": "^5.5.0",
-    "tns-core-modules": "^4.0.1",
+    "tns-core-modules": "~4.0.1",
     "zone.js": "^0.8.4"
   },
   "devDependencies": {

demo/package.json

@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "nativescript-drop-down": "file:../bin/dist",
-    "tns-core-modules": "^4.0.1"
+    "tns-core-modules": "~4.0.1"
   },
   "devDependencies": {
     "awesome-typescript-loader": "~3.1.3",