diff --git a/app/build.gradle b/app/build.gradle
index fc600f1aa..1e245c928 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -129,7 +129,7 @@ dependencies {
     implementation 'com.android.support:multidex:1.0.3'
 
     //WebSocket
-    implementation "org.java-websocket:Java-WebSocket:1.4.0"
+    implementation "org.java-websocket:Java-WebSocket:1.5.7"
     //EventBus
     implementation 'org.greenrobot:eventbus:3.1.1'
 
@@ -180,10 +180,10 @@ dependencies {
 
     implementation 'com.github.chrisbanes:PhotoView:2.3.0'
     
-    implementation 'com.squareup.retrofit2:retrofit:2.0.2'
+    implementation 'com.squareup.retrofit2:retrofit:2.11.0'
 
     implementation 'com.yangy:YZxing-lib:2.2'
-    implementation 'com.alibaba:fastjson:1.2.73'
+    implementation 'com.alibaba:fastjson:2.0.31'
     implementation "com.tencent.iot.thirdparty.android:esptouch:0.3.7.2"
     implementation "com.github.skydoves:progressview:1.1.2"
     implementation 'com.belerweb:pinyin4j:2.5.0'
diff --git a/sdk/explorer-link-android/README.md b/sdk/explorer-link-android/README.md
index 7a8a9a99c..17ba782b1 100644
--- a/sdk/explorer-link-android/README.md
+++ b/sdk/explorer-link-android/README.md
@@ -671,7 +671,7 @@ Didn't find class "org.java_websocket.client.WebSocketClient"
 
 dependencies {
 
-implementation "org.java-websocket:Java-WebSocket:1.4.0"
+implementation "org.java-websocket:Java-WebSocket:1.5.6"
 
 }
 
diff --git a/sdk/explorer-link-android/build.gradle b/sdk/explorer-link-android/build.gradle
index ed14c91cf..7761ebcff 100644
--- a/sdk/explorer-link-android/build.gradle
+++ b/sdk/explorer-link-android/build.gradle
@@ -34,13 +34,13 @@ dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.core:core-ktx:1.2.0'
-    implementation 'com.alibaba:fastjson:1.2.73'
+    implementation 'com.alibaba:fastjson:2.0.31'
     implementation "com.tencent.iot.thirdparty.android:esptouch:0.3.7.2"
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
     //WebSocket
-    implementation "org.java-websocket:Java-WebSocket:1.4.0"
+    implementation "org.java-websocket:Java-WebSocket:1.5.7"
     //kotlin协程
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.4'
     //腾讯地图定位
diff --git a/sdk/explorer-link-rtc/build.gradle b/sdk/explorer-link-rtc/build.gradle
index 2d582ad4a..d9ea4d156 100644
--- a/sdk/explorer-link-rtc/build.gradle
+++ b/sdk/explorer-link-rtc/build.gradle
@@ -44,7 +44,7 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'com.tencent.liteav:LiteAVSDK_TRTC:9.2.10641'
     implementation 'com.squareup.picasso:picasso:2.71828'
-    implementation 'com.alibaba:fastjson:1.2.73'
+    implementation 'com.alibaba:fastjson:2.0.31'
 
 }
 
diff --git a/sdk/video-link-android/build.gradle b/sdk/video-link-android/build.gradle
index 45ea33507..ebceb7f32 100644
--- a/sdk/video-link-android/build.gradle
+++ b/sdk/video-link-android/build.gradle
@@ -45,7 +45,7 @@ dependencies {
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
-    implementation 'com.alibaba:fastjson:1.2.73'
+    implementation 'com.alibaba:fastjson:2.0.31'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     //kotlin协程
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.4'
diff --git a/sdkdemo/build.gradle b/sdkdemo/build.gradle
index 894185265..3b7ad2dab 100644
--- a/sdkdemo/build.gradle
+++ b/sdkdemo/build.gradle
@@ -97,7 +97,7 @@ dependencies {
     }
 
     //WebSocket
-    implementation "org.java-websocket:Java-WebSocket:1.4.0"
+    implementation "org.java-websocket:Java-WebSocket:1.5.7"
     //kotlin协程
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.4'
 
@@ -124,7 +124,7 @@ dependencies {
     implementation 'com.google.firebase:firebase-crashlytics:17.0.1'
 
 //    implementation 'com.google.firebase:firebase-perf:19.0.7'
-    implementation 'com.alibaba:fastjson:1.2.73'
+    implementation 'com.alibaba:fastjson:2.0.31'
     implementation "com.tencent.iot.thirdparty.android:esptouch:0.3.7.2"
     implementation 'com.android.support:multidex:1.0.3'
     if (findProject(':sdk:explorer-link-rtc') != null) {