diff --git a/Arrow.js b/Arrow.js
index 72ab60f..2c2cb4f 100644
--- a/Arrow.js
+++ b/Arrow.js
@@ -1,11 +1,11 @@
 import React, {
-    PropTypes,
     Component,
 } from 'react'
 import {
     StyleSheet,
     View,
 } from 'react-native'
+import PropTypes from 'prop-types'
 
 import * as Utils from './Utils'
 
diff --git a/Circle.js b/Circle.js
index f410b67..fed4a45 100644
--- a/Circle.js
+++ b/Circle.js
@@ -1,11 +1,11 @@
 import React, {
-    PropTypes,
     Component,
 } from 'react'
 import {
     StyleSheet,
     View,
 } from 'react-native'
+import PropTypes from 'prop-types'
 
 const styles = StyleSheet.create({
     container: {
diff --git a/GesturePassword.js b/GesturePassword.js
index 17ec364..ccdbfd8 100644
--- a/GesturePassword.js
+++ b/GesturePassword.js
@@ -6,7 +6,6 @@
  */
 
 import React, {
-    PropTypes,
     Component,
 } from 'react'
 import {
@@ -17,6 +16,8 @@ import {
     Text,
 } from 'react-native'
 
+import PropTypes from 'prop-types'
+
 import * as Utils from './Utils'
 import Point from './Point'
 import Line from './Line'
diff --git a/Line.js b/Line.js
index dd67ffd..ae5bd62 100644
--- a/Line.js
+++ b/Line.js
@@ -1,11 +1,11 @@
 import React, {
-    PropTypes,
     Component,
 } from 'react'
 import {
     StyleSheet,
     View,
 } from 'react-native'
+import PropTypes from 'prop-types'
 
 import * as Utils from './Utils'
 
diff --git a/Point.js b/Point.js
index 665ebba..4527de8 100644
--- a/Point.js
+++ b/Point.js
@@ -1,5 +1,4 @@
 import React, {
-    PropTypes,
     Component,
 } from 'react'
 import {
@@ -7,6 +6,8 @@ import {
     View,
 } from 'react-native'
 
+import PropTypes from 'prop-types'
+
 import Circle from './Circle'
 
 export default class Point extends Component {
@@ -73,4 +74,4 @@ export default class Point extends Component {
         )
     }
 
-}
\ No newline at end of file
+}