diff --git a/en/react-native-crypto-js.md b/en/react-native-crypto-js.md
index a7d99349e1164fe0b22963bd7931f65f1d52caee..51287a15ade37be995dd45de5c5b7909a78ac373 100644
--- a/en/react-native-crypto-js.md
+++ b/en/react-native-crypto-js.md
@@ -49,7 +49,6 @@ import {
   Alert
 } from 'react-native';
 import CryptoJS from "react-native-crypto-js";
-//import CryptoJS from "rn-crypto-js";
 
 function encrypt_str(text: string) {
   let ciphertext = CryptoJS.AES.encrypt(text, 'secret key 123').toString();
@@ -82,12 +81,6 @@ function MD5_encrypt_str(text: string) {
   return ciphertext;
 }
 
-function HMD5_encrypt_str(text: string) {
-  let ciphertext = CryptoJS.HmacMD5(text, 'secret key 123').toString();
-  Alert.alert('encrypt：', ciphertext, [{ text: 'OK' }]);
-  return ciphertext;
-}
-
 export const ReactNativeCryptoJsExample = () => {
   const [cryptText, setCryptText] = useState('test 123');
   const [cryptText1, setCryptText1] = useState('test123');
@@ -120,11 +113,6 @@ export const ReactNativeCryptoJsExample = () => {
         <TextInput style={{ height: 40 }} placeholder="Please enter the content." onChangeText={(cryptText1: React.SetStateAction<string>) => setCryptText1(cryptText1)} defaultValue={cryptText1} />
       </View>
       <Button onPress={() => { MD5_encrypt_str(cryptText1) }} title="encrypt" />
-      <Text>  Encrypt and decrypt character strings using the HmacMD5 algorithm. </Text>
-      <View style={{ padding: 10 }}>
-        <TextInput style={{ height: 40 }} placeholder="Please enter the content." onChangeText={(cryptText2: React.SetStateAction<string>) => setCryptText2(cryptText2)} defaultValue={cryptText2} />
-      </View>
-      <Button onPress={() => { HMD5_encrypt_str(cryptText2) }} title="encrypt" />
     </ScrollView>
   );
 };
diff --git a/zh-cn/react-native-crypto-js.md b/zh-cn/react-native-crypto-js.md
index 46fbc3b163623cbf1e68bb51c8915aef0e6c85a9..2cc038b1e30f42c4e72258d21ac681233da5caba 100644
--- a/zh-cn/react-native-crypto-js.md
+++ b/zh-cn/react-native-crypto-js.md
@@ -49,7 +49,6 @@ import {
   Alert
 } from 'react-native';
 import CryptoJS from "react-native-crypto-js";
-//import CryptoJS from "rn-crypto-js";
 
 function encrypt_str(text: string) {
   let ciphertext = CryptoJS.AES.encrypt(text, 'secret key 123').toString();
@@ -82,12 +81,6 @@ function MD5_encrypt_str(text: string) {
   return ciphertext;
 }
 
-function HMD5_encrypt_str(text: string) {
-  let ciphertext = CryptoJS.HmacMD5(text, 'secret key 123').toString();
-  Alert.alert('encrypt：', ciphertext, [{ text: 'OK' }]);
-  return ciphertext;
-}
-
 export const ReactNativeCryptoJsExample = () => {
   const [cryptText, setCryptText] = useState('test 123');
   const [cryptText1, setCryptText1] = useState('test123');
@@ -120,11 +113,6 @@ export const ReactNativeCryptoJsExample = () => {
         <TextInput style={{ height: 40 }} placeholder="Please enter the content." onChangeText={(cryptText1: React.SetStateAction<string>) => setCryptText1(cryptText1)} defaultValue={cryptText1} />
       </View>
       <Button onPress={() => { MD5_encrypt_str(cryptText1) }} title="encrypt" />
-      <Text>  Encrypt and decrypt character strings using the HmacMD5 algorithm. </Text>
-      <View style={{ padding: 10 }}>
-        <TextInput style={{ height: 40 }} placeholder="Please enter the content." onChangeText={(cryptText2: React.SetStateAction<string>) => setCryptText2(cryptText2)} defaultValue={cryptText2} />
-      </View>
-      <Button onPress={() => { HMD5_encrypt_str(cryptText2) }} title="encrypt" />
     </ScrollView>
   );
 };