diff --git a/app/build.gradle b/app/build.gradle
index 47df812..81a6717 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -63,11 +63,11 @@ tasks.whenTaskAdded { task ->
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation "androidx.preference:preference:1.1.0-rc01"
-    implementation 'com.github.shadowsocks:plugin:1.3.1'
-    implementation 'com.takisoft.preferencex:preferencex-simplemenu:1.0.0'
+    implementation 'androidx.preference:preference:1.1.0'
+    implementation 'com.github.shadowsocks:plugin:1.3.3'
+    implementation 'com.takisoft.preferencex:preferencex-simplemenu:1.1.0'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlinVersion"
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
diff --git a/app/src/main/go/v2ray-plugin b/app/src/main/go/v2ray-plugin
index c7017f4..ca36119 160000
--- a/app/src/main/go/v2ray-plugin
+++ b/app/src/main/go/v2ray-plugin
@@ -1 +1 @@
-Subproject commit c7017f45bb1e12cf1e4b739bcb8f42f3eb8b22cd
+Subproject commit ca361195f584f3904c9440ac012bd4e8611f7b52
diff --git a/build.gradle b/build.gradle
index 1cbc68e..3009a20 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'com.github.ben-manes.versions'
 
 buildscript {
     ext {
-        kotlinVersion = '1.3.50'
+        kotlinVersion = '1.3.61'
         minSdkVersion = 21
     }
     repositories {
@@ -12,8 +12,8 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
-        classpath 'com.github.ben-manes:gradle-versions-plugin:0.22.0'
+        classpath 'com.android.tools.build:gradle:3.5.3'
+        classpath 'com.github.ben-manes:gradle-versions-plugin:0.27.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
     }
 }
diff --git a/detekt.yml b/detekt.yml
index da4088d..857213e 100644
--- a/detekt.yml
+++ b/detekt.yml
@@ -1,5 +1,4 @@
-# https://github.com/arturbosch/detekt/blob/RC9.2/detekt-cli/src/main/resources/default-detekt-config.yml
-autoCorrect: true
+# https://github.com/arturbosch/detekt/blob/1.3.1/detekt-cli/src/main/resources/default-detekt-config.yml
 
 comments:
   active: false
@@ -15,16 +14,20 @@ complexity:
     includeStaticDeclarations: false
   ComplexMethod:
     active: true
-    threshold: 10
+    threshold: 15
     ignoreSingleWhenExpression: false
+    ignoreSimpleWhenEntries: false
+    ignoreNestingFunctions: false
+    nestingFunctions: run,let,apply,with,also,use,forEach,isNotNull,ifNull
   LabeledExpression:
     active: false
+    ignoredLabels: ""
   LargeClass:
     active: true
-    threshold: 150
+    threshold: 600
   LongMethod:
     active: true
-    threshold: 20
+    threshold: 60
   LongParameterList:
     active: true
     threshold: 6
@@ -36,12 +39,14 @@ complexity:
     threshold: 4
   StringLiteralDuplication:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     threshold: 3
     ignoreAnnotation: true
     excludeStringsWithLessThan5Characters: true
     ignoreStringsRegex: '$^'
   TooManyFunctions:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     thresholdInFiles: 11
     thresholdInClasses: 11
     thresholdInInterfaces: 11
@@ -49,6 +54,7 @@ complexity:
     thresholdInEnums: 11
     ignoreDeprecated: true
     ignorePrivate: false
+    ignoreOverridden: true
 
 empty-blocks:
   active: true
@@ -69,7 +75,7 @@ empty-blocks:
     active: true
   EmptyFunctionBlock:
     active: true
-    ignoreOverriddenFunctions: false
+    ignoreOverriddenFunctions: true
   EmptyIfBlock:
     active: true
   EmptyInitBlock:
@@ -89,7 +95,7 @@ exceptions:
     active: true
     methodNames: 'toString,hashCode,equals,finalize'
   InstanceOfCheckForException:
-    active: true
+    active: false
   NotImplementedDeclaration:
     active: true
   PrintStackTrace:
@@ -98,8 +104,11 @@ exceptions:
     active: false
   ReturnFromFinally:
     active: true
+    ignoreLabeled: true
   SwallowedException:
     active: true
+    ignoredExceptionTypes: 'InterruptedException,NumberFormatException,ParseException,MalformedURLException'
+    allowedExceptionNameRegex: "^(_|(ignore|expected).*)"
   ThrowingExceptionFromFinally:
     active: false
   ThrowingExceptionInMain:
@@ -111,6 +120,7 @@ exceptions:
     active: true
   TooGenericExceptionCaught:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     exceptionNames:
      - ArrayIndexOutOfBoundsException
      - Error
@@ -133,6 +143,9 @@ formatting:
   active: true
   android: true
   autoCorrect: true
+  AnnotationOnSeparateLine:
+    active: true
+    autoCorrect: true
   ChainWrapping:
     active: true
     autoCorrect: true
@@ -155,6 +168,9 @@ formatting:
   ModifierOrdering:
     active: true
     autoCorrect: true
+  MultiLineIfElse:
+    active: true
+    autoCorrect: true
   NoBlankLineBeforeRbrace:
     active: true
     autoCorrect: true
@@ -164,8 +180,6 @@ formatting:
   NoEmptyClassBody:
     active: true
     autoCorrect: true
-  NoItParamInMultilineLambda:
-    active: true
   NoLineBreakAfterElse:
     active: true
     autoCorrect: true
@@ -188,6 +202,9 @@ formatting:
     autoCorrect: true
   NoWildcardImports:
     active: false
+  PackageName:
+    active: true
+    autoCorrect: true
   ParameterListWrapping:
     active: false
   SpacingAroundColon:
@@ -199,12 +216,18 @@ formatting:
   SpacingAroundCurly:
     active: true
     autoCorrect: true
+  SpacingAroundDot:
+    active: true
+    autoCorrect: true
   SpacingAroundKeyword:
     active: true
     autoCorrect: true
   SpacingAroundOperators:
     active: true
     autoCorrect: true
+  SpacingAroundParens:
+    active: true
+    autoCorrect: true
   SpacingAroundRangeOperator:
     active: true
     autoCorrect: true
@@ -217,56 +240,74 @@ naming:
   ClassNaming:
     active: true
     classPattern: '[A-Z$][a-zA-Z0-9$]*'
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
   ConstructorParameterNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     parameterPattern: '[a-z][A-Za-z0-9]*'
     privateParameterPattern: '[a-z][A-Za-z0-9]*'
     excludeClassPattern: '$^'
+    ignoreOverridden: true
   EnumNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     enumEntryPattern: '^[A-Z][_a-zA-Z0-9]*'
   ForbiddenClassName:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     forbiddenName: ''
   FunctionMaxLength:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     maximumFunctionNameLength: 30
   FunctionMinLength:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     minimumFunctionNameLength: 3
   FunctionNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     functionPattern: '^([a-z$][a-zA-Z$0-9]*)|(`.*`)$'
     excludeClassPattern: '$^'
     ignoreOverridden: true
   FunctionParameterNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     parameterPattern: '[a-z][A-Za-z0-9]*'
     excludeClassPattern: '$^'
+    ignoreOverriddenFunctions: true
+  InvalidPackageDeclaration:
+    active: true
+    rootPackage: ''
   MatchingDeclarationName:
     active: true
   MemberNameEqualsClassName:
     active: false
   ObjectPropertyNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     constantPattern: '[A-Za-z][_A-Za-z0-9]*'
     propertyPattern: '[A-Za-z][_A-Za-z0-9]*'
-    privatePropertyPattern: '(_)?[A-Za-z][A-Za-z0-9]*'
+    privatePropertyPattern: '(_)?[A-Za-z][_A-Za-z0-9]*'
   PackageNaming:
     active: true
-    packagePattern: '^[a-z]+(\.[a-z][a-z0-9]*)*$'
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    packagePattern: '^[a-z]+(\.[a-z][A-Za-z0-9]*)*$'
   TopLevelPropertyNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     constantPattern: '[A-Z][_A-Z0-9]*'
     propertyPattern: '[A-Za-z][_A-Za-z0-9]*'
-    privatePropertyPattern: '(_)?[A-Za-z][A-Za-z0-9]*'
+    privatePropertyPattern: '_?[A-Za-z][_A-Za-z0-9]*'
   VariableMaxLength:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     maximumVariableNameLength: 64
   VariableMinLength:
     active: false
   VariableNaming:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
     variablePattern: '[a-z][A-Za-z0-9]*'
     privateVariablePattern: '(_)?[a-z][A-Za-z0-9]*'
     excludeClassPattern: '$^'
@@ -274,15 +315,21 @@ naming:
 
 performance:
   active: true
+  ArrayPrimitive:
+    active: true
   ForEachOnRange:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
   SpreadOperator:
     active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
   UnnecessaryTemporaryInstantiation:
     active: true
 
 potential-bugs:
   active: true
+  Deprecation:
+    active: true
   DuplicateCaseInWhenExpression:
     active: true
   EqualsAlwaysReturnsTrueOrFalse:
@@ -291,6 +338,10 @@ potential-bugs:
     active: true
   ExplicitGarbageCollectionCall:
     active: true
+  HasPlatformType:
+    active: true
+  ImplicitDefaultLocale:
+    active: true
   InvalidRange:
     active: true
   IteratorHasNextCallsNextMethod:
@@ -299,12 +350,18 @@ potential-bugs:
     active: true
   LateinitUsage:
     active: false
+  MapGetWithNotNullAssertionOperator:
+    active: true
+  MissingWhenCase:
+    active: false
+  RedundantElseInWhen:
+    active: true
   UnconditionalJumpStatementInLoop:
     active: true
   UnreachableCode:
     active: true
   UnsafeCallOnNullableType:
-    active: false
+    active: true
   UnsafeCast:
     active: false
   UselessPostfixExpression:
@@ -318,23 +375,42 @@ style:
     active: true
   DataClassContainsFunctions:
     active: false
+  DataClassShouldBeImmutable:
+    active: false
   EqualsNullCall:
     active: true
+  EqualsOnSignatureLine:
+    active: true
+  ExplicitItLambdaParameter:
+    active: true
   ExpressionBodySyntax:
     active: true
     includeLineWrapping: false
   ForbiddenComment:
     active: true
     values: 'TODO:,FIXME:,STOPSHIP:'
+    allowedPatterns: ""
   ForbiddenImport:
     active: true
     imports: ''
+    forbiddenPatterns: ""
+  ForbiddenMethodCall:
+    active: true
+    methods: ''
+  ForbiddenPublicDataClass:
+    active: true
+    ignorePackages: '*.internal,*.internal.*'
   ForbiddenVoid:
     active: true
+    ignoreOverridden: true
+    ignoreUsageInGenerics: false
   FunctionOnlyReturningConstant:
     active: true
     ignoreOverridableFunction: true
     excludedFunctions: 'describeContents'
+    excludeAnnotatedFunction: "dagger.Provides"
+  LibraryCodeMustSpecifyReturnType:
+    active: true
   LoopWithTooManyJumpStatements:
     active: true
     maxJumpCount: 1
@@ -363,11 +439,13 @@ style:
   OptionalUnit:
     active: true
   OptionalWhenBraces:
-    active: true
+    active: false
   PreferToOverPairSyntax:
     active: false
   ProtectedMemberInFinalClass:
     active: true
+  RedundantExplicitType:
+    active: true
   RedundantVisibilityModifierRule:
     active: true
   ReturnCount:
@@ -383,9 +461,15 @@ style:
     max: 2
   TrailingWhitespace:
     active: true
+  UnderscoresInNumericLiterals:
+    active: false
   UnnecessaryAbstractClass:
     active: true
     excludeAnnotatedClasses: "dagger.Module"
+  UnnecessaryAnnotationUseSiteTarget:
+    active: true
+  UnnecessaryApply:
+    active: true
   UnnecessaryInheritance:
     active: true
   UnnecessaryLet:
@@ -396,14 +480,26 @@ style:
     active: true
   UnusedImports:
     active: true
+  UnusedPrivateClass:
+    active: true
   UnusedPrivateMember:
     active: true
     allowedNames: "(_|ignored|expected|serialVersionUID)"
+  UseArrayLiteralsInAnnotations:
+    active: true
+  UseCheckOrError:
+    active: true
   UseDataClass:
     active: false
+  UseIfInsteadOfWhen:
+    active: false
+  UseRequire:
+    active: true
+  UselessCallOnNotNull:
+    active: true
   UtilityClassWithPublicConstructor:
     active: true
   VarCouldBeVal:
-    active: false
+    active: true
   WildcardImport:
     active: false
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 5c2d1cf..cc4fdc2 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 8d58bda..31a0802 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index b0d6d0a..2fe81a7 100755
--- a/gradlew
+++ b/gradlew
@@ -7,7 +7,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#      https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -125,8 +125,8 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
     JAVACMD=`cygpath --unix "$JAVACMD"`
@@ -154,19 +154,19 @@ if $cygwin ; then
         else
             eval `echo args$i`="\"$arg\""
         fi
-        i=$((i+1))
+        i=`expr $i + 1`
     done
     case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
     esac
 fi
 
@@ -175,14 +175,9 @@ save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }
-APP_ARGS=$(save "$@")
+APP_ARGS=`save "$@"`
 
 # Collect all arguments for the java command, following the shell quoting and substitution rules
 eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
 exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
index 15e1ee3..24467a1 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -5,7 +5,7 @@
 @rem you may not use this file except in compliance with the License.
 @rem You may obtain a copy of the License at
 @rem
-@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem      https://www.apache.org/licenses/LICENSE-2.0
 @rem
 @rem Unless required by applicable law or agreed to in writing, software
 @rem distributed under the License is distributed on an "AS IS" BASIS,