diff --git a/README.md b/README.md
index 9310c57..eb8ab3f 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@
 - 依赖使用 Gradle 构建时添加一下即可
 
 ```javascript
-compile 'com.mylhyl:zxingscanner:2.1.5'
+compile 'com.mylhyl:zxingscanner:2.1.6'
 ```
 
 ## 2、离线jar，需要手动添加 Zxing 核心库
diff --git a/sample/build.gradle b/sample/build.gradle
index 0966662..26b8dfd 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -8,7 +8,7 @@ android {
         minSdkVersion 15
         targetSdkVersion 27
         versionCode 4
-        versionName "20180412"
+        versionName "20190524"
     }
     buildTypes {
         release {
@@ -23,7 +23,6 @@ android {
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    androidTestImplementation 'junit:junit:4.12'
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support:design:28.0.0'
     implementation project(':zxingscanner')
diff --git a/sample/src/androidTest/java/com/mylhyl/zxing/scanner/sample/ApplicationTest.java b/sample/src/androidTest/java/com/mylhyl/zxing/scanner/sample/ApplicationTest.java
deleted file mode 100644
index 31712e5..0000000
--- a/sample/src/androidTest/java/com/mylhyl/zxing/scanner/sample/ApplicationTest.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.mylhyl.zxing.scanner.sample;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}
\ No newline at end of file
diff --git a/sample/src/test/java/com/mylhyl/zxing/scanner/sample/ExampleUnitTest.java b/sample/src/test/java/com/mylhyl/zxing/scanner/sample/ExampleUnitTest.java
deleted file mode 100644
index ff134e0..0000000
--- a/sample/src/test/java/com/mylhyl/zxing/scanner/sample/ExampleUnitTest.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.mylhyl.zxing.scanner.sample;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-/**
- * To work on unit tests, switch the Test Artifact in the Build Variants view.
- */
-public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() throws Exception {
-        assertEquals(4, 2 + 2);
-    }
-}
\ No newline at end of file
diff --git a/zxingscanner/build.gradle b/zxingscanner/build.gradle
index b1d33b0..35cc1c5 100644
--- a/zxingscanner/build.gradle
+++ b/zxingscanner/build.gradle
@@ -6,8 +6,8 @@ android {
     defaultConfig {
         minSdkVersion 15
         targetSdkVersion 28
-        versionCode 20190514
-        versionName '2.1.5'
+        versionCode 20190524
+        versionName '2.1.6'
     }
     buildTypes {
         release {