diff --git a/package-lock.json b/package-lock.json
index bf1594441..6790a31b4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -514,9 +514,9 @@
       "dev": true
     },
     "angular-draggable-droppable": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/angular-draggable-droppable/-/angular-draggable-droppable-1.1.0.tgz",
-      "integrity": "sha512-mPeeFLhCXCxTrHh99A/0DcRCJKcNM5bkFKgp2qLxYF8tPVcK1HFmsQpqPAkAS2afxhJUps7FqTm6cb22oF3uoA=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/angular-draggable-droppable/-/angular-draggable-droppable-1.1.1.tgz",
+      "integrity": "sha512-peha7H6EtuigMcdsbRinTOqUbQf+TDQ/Sgxme0xs0/Rk6dpFDZdEw0G/O89BG0q1mNQyOnYMdgf+wX0OfJDp7g=="
     },
     "angular-highlight-js": {
       "version": "2.0.1",
@@ -525,9 +525,9 @@
       "dev": true
     },
     "angular-resizable-element": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/angular-resizable-element/-/angular-resizable-element-1.2.3.tgz",
-      "integrity": "sha512-1JVz1xXTBz+qRCVljjRTQRNZ95HeW+96P+RaWsP+ikPWbE16fS4STrY6vgK6deLeFpMy5nHW+Kd174qlXq6+bg=="
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/angular-resizable-element/-/angular-resizable-element-1.2.4.tgz",
+      "integrity": "sha512-unMWXfmx02zfX4BUpvA+S+9/+QfXowRvS57jwGIV+Vhnl+9wTYHaHnoQS/dpiUpNrtuFw2K1V5/Fcz5ZHpxsww=="
     },
     "angular-router-loader": {
       "version": "0.6.0",
diff --git a/package.json b/package.json
index e3610f0bd..320e94ae1 100644
--- a/package.json
+++ b/package.json
@@ -154,10 +154,10 @@
     "zone.js": "^0.8.18"
   },
   "peerDependencies": {
-    "@angular/animations": "^4.0.0",
-    "@angular/common": "^4.0.0",
-    "@angular/core": "^4.0.0",
-    "@angular/platform-browser": "^4.0.0",
+    "@angular/animations": ">=4.0.0 <6.0.0",
+    "@angular/common": ">=4.0.0 <6.0.0",
+    "@angular/core": ">=4.0.0 <6.0.0",
+    "@angular/platform-browser": ">=4.0.0 <6.0.0",
     "typescript": "^2.3.0"
   },
   "files": [
@@ -165,8 +165,8 @@
     "scss"
   ],
   "dependencies": {
-    "angular-draggable-droppable": "^1.1.0",
-    "angular-resizable-element": "^1.2.3",
+    "angular-draggable-droppable": "^1.1.1",
+    "angular-resizable-element": "^1.2.4",
     "calendar-utils": "0.0.57",
     "date-fns": "^1.28.5",
     "positioning": "^1.3.1"