diff --git a/app/build.gradle b/app/build.gradle
index ee51eab..6c4b932 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,7 +6,7 @@ repositories {
 }
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
     buildToolsVersion "29.0.3"
 
     compileOptions {
@@ -18,8 +18,8 @@ android {
         applicationId "idv.markkuo.cscblebridge"
         minSdkVersion 21
         targetSdkVersion 30
-        versionCode 3
-        versionName "1.2"
+        versionCode 4
+        versionName "1.3"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
@@ -38,18 +38,18 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
-    implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
-    implementation "androidx.recyclerview:recyclerview:1.1.0"
-    implementation "androidx.core:core-ktx:+"
+    implementation 'androidx.appcompat:appcompat:1.4.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
+    implementation "androidx.recyclerview:recyclerview:1.2.1"
+    implementation "androidx.core:core-ktx:1.7.0"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation "androidx.cardview:cardview:1.0.0"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2"
 
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
     implementation fileTree(dir: 'libs', include: ['*.aar', '*.jar'], exclude: [])
     implementation files('libs/antpluginlib_3-8-0.aar')
-    implementation "org.jetbrains.kotlin:kotlin-reflect:1.4.30-RC"
+    implementation "org.jetbrains.kotlin:kotlin-reflect:1.4.31"
 }
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 20bcb24..d9f46c1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.4.30-RC'
+    ext.kotlin_version = '1.4.31'
 
     repositories {
         google()
@@ -9,7 +9,7 @@ buildscript {
         
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.2'
+        classpath 'com.android.tools.build:gradle:4.1.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"