diff --git a/.travis.yml b/.travis.yml
index 3151900..a977f7c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ addons:
 
 language: node_js
 node_js:
-  - '12'
+  - node
 
 branches:
   only:
diff --git a/README.md b/README.md
index eafbc02..4fdca2e 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 An Angular library of Date Range Picker. Dependencies: Angular, ng-bootstrap, Bootstrap 4 (css)
 
+Since **v3.0.0**, this library requires @angular/localize, due to updates in Angular 9 and ng-bootstrap 6.
+
 [![Build Status](https://img.shields.io/travis/changhuixu/date-range-picker/master.svg?label=Travis%20CI&style=flat-square)](https://travis-ci.org/changhuixu/date-range-picker)
 
 [![npm](https://img.shields.io/npm/v/@uiowa/date-range-picker.svg?style=flat-square)](https://www.npmjs.com/package/@uiowa/date-range-picker)
diff --git a/package-lock.json b/package-lock.json
index 93c6b12..23ee2ab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2893,12 +2893,9 @@
       }
     },
     "@uiowa/date-range-picker": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/@uiowa/date-range-picker/-/date-range-picker-2.1.0.tgz",
-      "integrity": "sha512-cX043WPWu/IIlbObvEwBJEmAJN7MKKu6oMeW66qDdSODnLw3oQjrLOYSk71cDIqNAx46Zu9aBkgkM6DIZztjKw==",
-      "requires": {
-        "tslib": "^1.9.0"
-      }
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@uiowa/date-range-picker/-/date-range-picker-3.0.0.tgz",
+      "integrity": "sha512-UfjF0yqfMHD+hSYmIGDVTdfYGhVM8AGUvXyHjJrE1+2bppc/W0GyIBpKUraEPNVHlgNqFVmb8JWo6Tk1/ztzdw=="
     },
     "@webassemblyjs/ast": {
       "version": "1.8.5",
diff --git a/package.json b/package.json
index 62ffbb3..e5a0f52 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
     "start": "ng serve",
     "build": "ng build",
     "build:prod": "ng build --prod",
-    "build:lib": "ng build @uiowa/date-range-picker",
+    "build:lib": "ng build @uiowa/date-range-picker --prod",
     "test": "ng test",
     "test:lib": "ng test @uiowa/date-range-picker --watch=false --code-coverage",
     "lint": "ng lint",
@@ -24,7 +24,7 @@
     "@angular/platform-browser-dynamic": "~9.0.2",
     "@angular/router": "~9.0.2",
     "@ng-bootstrap/ng-bootstrap": "^6.0.0",
-    "@uiowa/date-range-picker": "^2.1.0",
+    "@uiowa/date-range-picker": "^3.0.0",
     "bootstrap": "^4.4.1",
     "rxjs": "~6.4.0",
     "tslib": "^1.10.0",
diff --git a/projects/uiowa/date-range-picker/README.md b/projects/uiowa/date-range-picker/README.md
index dc0d4d8..c3bf375 100644
--- a/projects/uiowa/date-range-picker/README.md
+++ b/projects/uiowa/date-range-picker/README.md
@@ -2,6 +2,8 @@
 
 An Angular library of Date Range Picker. Dependencies: Angular, ng-bootstrap, Bootstrap 4 (css)
 
+Since **v3.0.0**, this library requires @angular/localize, due to updates in Angular 9 and ng-bootstrap 6.
+
 [![Build Status](https://img.shields.io/travis/changhuixu/date-range-picker/master.svg?label=Travis%20CI&style=flat-square)](https://travis-ci.org/changhuixu/date-range-picker)
 [![npm](https://img.shields.io/npm/v/@uiowa/date-range-picker.svg?style=flat-square)](https://www.npmjs.com/package/@uiowa/date-range-picker)
 
@@ -44,7 +46,10 @@ import { DateRangePickerModule } from '@uiowa/date-range-picker';
 
 ```html
 // in your component.html
-<date-range-picker [(dateRange)]="dateRange" [maxDate]="maxDate"></date-range-picker>
+<date-range-picker
+  [(dateRange)]="dateRange"
+  [maxDate]="maxDate"
+></date-range-picker>
 <date-picker [(date)]="date"></date-picker>
 ```
 
diff --git a/projects/uiowa/date-range-picker/package.json b/projects/uiowa/date-range-picker/package.json
index 5262a9e..ebf9c86 100644
--- a/projects/uiowa/date-range-picker/package.json
+++ b/projects/uiowa/date-range-picker/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@uiowa/date-range-picker",
-  "version": "2.1.0",
+  "version": "3.0.0",
   "author": "Changhui Xu <changhui-xu@uiowa.edu>",
   "contributors": [
     "Jacob Feuerbach <jacob-feuerbach@uiowa.edu>"
@@ -18,8 +18,9 @@
   },
   "license": "MIT",
   "peerDependencies": {
-    "@angular/common": ">=8.0.0",
-    "@angular/core": ">=8.0.0",
-    "@ng-bootstrap/ng-bootstrap": ">=4.0.0"
+    "@angular/common": ">=9.0.0",
+    "@angular/core": ">=9.0.0",
+    "@angular/localize": ">=9.0.0",
+    "@ng-bootstrap/ng-bootstrap": ">=6.0.0"
   }
 }
diff --git a/tsconfig.json b/tsconfig.json
index ec4bea6..1d8b21c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,24 +11,11 @@
     "moduleResolution": "node",
     "importHelpers": true,
     "target": "es2015",
-    "typeRoots": [
-      "node_modules/@types"
-    ],
-    "lib": [
-      "es2018",
-      "dom"
-    ],
-    "paths": {
-      "@uiowa/date-range-picker": [
-        "dist/uiowa/date-range-picker"
-      ],
-      "@uiowa/date-range-picker/*": [
-        "dist/uiowa/date-range-picker/*"
-      ]
-    }
+    "typeRoots": ["node_modules/@types"],
+    "lib": ["es2018", "dom"]
   },
   "angularCompilerOptions": {
     "fullTemplateTypeCheck": true,
     "strictInjectionParameters": true
   }
-}
\ No newline at end of file
+}