diff --git a/package-lock.json b/package-lock.json
index 0a5e3b6..7865a07 100644
--- a/package-lock.json
+++ b/package-lock.json
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+    "util-promisify": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/util-promisify/-/util-promisify-2.1.0.tgz",
+      "integrity": "sha1-PCI2R2xNMsX/PEcAKt18E7moKlM=",
+      "dev": true,
+      "requires": {
+        "object.getownpropertydescriptors": "^2.0.3"
+      }
+    },
     "utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@ -11574,9 +11598,9 @@
       }
     },
     "yargs-parser": {
-      "version": "13.1.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.0.tgz",
-      "integrity": "sha512-Yq+32PrijHRri0vVKQEm+ys8mbqWjLiwQkMFNXEENutzLPP0bE4Lcd4iA3OQY5HF+GD3xXxf0MEHb8E4/SA3AA==",
+      "version": "13.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
+      "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
       "dev": true,
       "requires": {
         "camelcase": "^5.0.0",
diff --git a/package.json b/package.json
index e2f96f2..3fa5b30 100644
--- a/package.json
+++ b/package.json
@@ -26,15 +26,15 @@
     "url": "https://github.com/leo6104/ngx-slick-carousel/issues"
   },
   "devDependencies": {
-    "@angular-devkit/build-ng-packagr": "^0.800.2",
-    "@angular/cli": "^8.0.2",
-    "@angular/common": "^8.0.0",
-    "@angular/compiler": "^8.0.0",
-    "@angular/compiler-cli": "^8.0.0",
-    "@angular/core": "^8.0.0",
-    "@angular/forms": "^8.0.0",
-    "@angular/platform-browser": "^8.0.0",
-    "@angular/platform-browser-dynamic": "^8.0.0",
+    "@angular-devkit/build-ng-packagr": "^0.801.2",
+    "@angular/cli": "^8.1.2",
+    "@angular/common": "^8.1.3",
+    "@angular/compiler": "^8.1.3",
+    "@angular/compiler-cli": "^8.1.3",
+    "@angular/core": "^8.1.3",
+    "@angular/forms": "^8.1.3",
+    "@angular/platform-browser": "^8.1.3",
+    "@angular/platform-browser-dynamic": "^8.1.3",
     "@compodoc/compodoc": "^1.1.9",
     "@types/jasmine": "^3.3.13",
     "@types/node": "^12.0.7",
@@ -50,7 +50,7 @@
     "karma-jasmine-html-reporter": "^1.4.2",
     "karma-typescript": "^4.1.0",
     "karma-typescript-es6-transform": "^4.1.0",
-    "ng-packagr": "^5.3.0",
+    "ng-packagr": "^5.4.0",
     "protractor": "^5.4.2",
     "rxjs": "^6.5.2",
     "ts-node": "^8.2.0",
diff --git a/src/package.json b/src/package.json
index f302eb2..a813057 100644
--- a/src/package.json
+++ b/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ngx-slick-carousel",
-  "version": "0.4.4",
+  "version": "0.4.5",
   "repository": {
     "type": "git",
     "url": "https://github.com/leo6104/ngx-slick-carousel"
@@ -19,10 +19,10 @@
   "module": "ngx-slick.js",
   "typings": "ngx-slick.d.ts",
   "peerDependencies": {
-    "@angular/core": "^6.0.0 || ^7.0.0",
-    "@angular/common": "^6.0.0 || ^7.0.0",
-    "@angular/forms": "^6.0.0 || ^7.0.0",
+    "@angular/core": "^7.0.0 || ^8.0.0",
+    "@angular/common": "^7.0.0 || ^8.0.0",
+    "@angular/forms": "^7.0.0 || ^8.0.0",
     "rxjs": "^6.0.0",
-    "zone.js": "^0.8.26"
+    "zone.js": "^0.9.1"
   }
 }