diff --git a/package.json b/package.json
index 0c4ef62..8805d4b 100644
--- a/package.json
+++ b/package.json
@@ -71,12 +71,12 @@
     "zone.js": "^0.8.4"
   },
   "devDependencies": {
-    "@angular/common": "4.1.3",
-    "@angular/compiler": "4.1.3",
-    "@angular/compiler-cli": "4.1.3",
-    "@angular/core": "4.1.3",
-    "@angular/platform-browser": "4.1.3",
-    "@angular/platform-browser-dynamic": "4.1.3",
+    "@angular/common": "~4.1.3",
+    "@angular/compiler": "~4.1.3",
+    "@angular/compiler-cli": "~4.1.3",
+    "@angular/core": "~4.1.3",
+    "@angular/platform-browser": "~4.1.3",
+    "@angular/platform-browser-dynamic": "~4.1.3",
     "browser-sync": "^2.18.8",
     "core-js": "^2.4.1",
     "cpx": "^1.5.0",