diff --git a/package.json b/package.json
index 2324a21..3307a64 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "@types/highcharts": "^4.2.1"
   },
   "peerDependencies": {
-    "@angular/core": "^4.0.0"
+    "@angular/core": "^4.0.0 || ^5.0.0"
   },
   "devDependencies": {
     "@angular/common": "^4.0.0",