diff --git a/.gitignore b/.gitignore
index 3cfd146..43d566b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,4 @@ proguard/
 .idea
 *.iml
 *.DS_Store
+/*/release/
diff --git a/app/build.gradle b/app/build.gradle
index 05ef191..b04e170 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,20 +1,20 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
         applicationId "com.moko.beacon"
         minSdkVersion 18
-        targetSdkVersion 23
+        targetSdkVersion 28
         versionCode 5
         versionName "1.2.2"
-    }
 
-    sourceSets {
-        lintOptions {
-            abortOnError false
+        javaCompileOptions {
+            annotationProcessorOptions {
+                includeCompileClasspath = true
+            }
         }
     }
 
@@ -24,25 +24,47 @@ android {
         }
     }
 
+    signingConfigs {
+        debug {
+            v1SigningEnabled true
+            v2SigningEnabled true
+        }
+        release {
+            v1SigningEnabled true
+            v2SigningEnabled true
+        }
+    }
+
     applicationVariants.all { variant ->
-        variant.outputs.each { output ->
+        variant.outputs.all { output ->
             def outputFile = output.outputFile
             if (outputFile != null && outputFile.name.endsWith('.apk')) {
-                //这里修改apk文件名
-                def fileName = "MokoBeacon-${defaultConfig.versionName}.apk"
+                def formatedDate = new Date().format("yyyyMMddHHmm")
+                def apkFileName = "MokoBeacon_${defaultConfig.versionName}_${formatedDate}.apk"
                 if (outputFile.name.contains('debug')) {
-                    fileName = "MokoBeacon-${defaultConfig.versionName}-debug.apk"
+                    apkFileName = "MokoBeacon_${defaultConfig.versionName}_${formatedDate}_debug.apk"
                 }
-                output.outputFile = new File(outputFile.parent, fileName)
+                outputFileName = apkFileName
+            }
+        }
+    }
+}
+
+configurations.all {
+    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
+        def requested = details.requested
+        if (requested.group == 'com.android.support') {
+            if (!requested.name.startsWith("multidex")) {
+                details.useVersion '28.0.0'
             }
         }
     }
 }
 
 dependencies {
-    compile fileTree(include: '*.jar', dir: 'libs')
-    compile 'com.jakewharton:butterknife:7.0.0'
-    compile 'com.android.support:support-v4:23.1.0'
-    compile project(path: ':mokosupport')
+    implementation fileTree(include: '*.jar', dir: 'libs')
+    implementation 'com.jakewharton:butterknife:7.0.0'
+    implementation 'com.android.support:support-v4:28.0.0'
+    implementation project(path: ':mokosupport')
 
 }
diff --git a/build.gradle b/build.gradle
index 34e9769..7233ea3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,13 +1,15 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.3'
+        classpath 'com.android.tools.build:gradle:3.2.1'
     }
 }
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 0537aa2..3c04e2f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
\ No newline at end of file
diff --git a/mokosupport/build.gradle b/mokosupport/build.gradle
index 5e1800d..77ee52e 100644
--- a/mokosupport/build.gradle
+++ b/mokosupport/build.gradle
@@ -1,12 +1,12 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+    compileSdkVersion 28
+    buildToolsVersion '28.0.3'
 
     defaultConfig {
         minSdkVersion 18
-        targetSdkVersion 23
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -18,8 +18,8 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'no.nordicsemi.android.support.v18:scanner:1.0.0'
-    compile 'com.elvishew:xlog:1.3.0'
-    compile 'no.nordicsemi.android:dfu:0.6.2'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    api 'no.nordicsemi.android.support.v18:scanner:1.0.0'
+    implementation 'com.elvishew:xlog:1.3.0'
+    api 'no.nordicsemi.android:dfu:0.6.2'
 }