diff --git a/druid-spring-boot-autoconfigure/pom.xml b/druid-spring-boot-autoconfigure/pom.xml
index 8fe994c..54736e0 100644
--- a/druid-spring-boot-autoconfigure/pom.xml
+++ b/druid-spring-boot-autoconfigure/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.github.drtrang</groupId>
         <artifactId>druid-spring-boot</artifactId>
-        <version>1.0.2</version>
+        <version>1.0.3-SNAPSHOT</version>
     </parent>
 
     <artifactId>druid-spring-boot-autoconfigure</artifactId>
diff --git a/druid-spring-boot-samples/pom.xml b/druid-spring-boot-samples/pom.xml
index 00ad225..3eca54c 100644
--- a/druid-spring-boot-samples/pom.xml
+++ b/druid-spring-boot-samples/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.github.drtrang</groupId>
         <artifactId>druid-spring-boot</artifactId>
-        <version>1.0.2</version>
+        <version>1.0.3-SNAPSHOT</version>
     </parent>
 
     <artifactId>druid-spring-boot-samples</artifactId>
@@ -68,14 +68,18 @@
             <groupId>com.github.drtrang</groupId>
             <artifactId>druid-spring-boot-starter</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/druid-spring-boot-samples/src/main/resources/application.yml b/druid-spring-boot-samples/src/main/resources/application.yml
index 8820e32..ed0bc69 100644
--- a/druid-spring-boot-samples/src/main/resources/application.yml
+++ b/druid-spring-boot-samples/src/main/resources/application.yml
@@ -10,8 +10,8 @@ logging:
 
 spring:
   profiles:
-    # 默认环境为 single，多数据源示例改为 dynamic
-    active: single
+    # 默认环境为 default，多数据源示例改为 dynamic
+    active: default
   datasource:
     driver-class-name: org.h2.Driver
     url: jdbc:h2:file:./samples
@@ -70,6 +70,11 @@ spring:
   aop:
     auto: true
     proxy-target-class: true
+  http:
+    encoding:
+      force: true
+    converters:
+      preferred-json-mapper: gson
 
 mybatis:
   type-aliases-package: com.github.trang.druid.model
@@ -79,7 +84,7 @@ mybatis:
 debug: false
 
 spring:
-  profiles: single
+  profiles: default
 
 ---
 
diff --git a/druid-spring-boot-samples/src/test/java/com/github/trang/druid/test/SingleDataSourceTests.java b/druid-spring-boot-samples/src/test/java/com/github/trang/druid/test/SingleDataSourceTests.java
index c9dec7a..ef466e0 100644
--- a/druid-spring-boot-samples/src/test/java/com/github/trang/druid/test/SingleDataSourceTests.java
+++ b/druid-spring-boot-samples/src/test/java/com/github/trang/druid/test/SingleDataSourceTests.java
@@ -3,7 +3,6 @@ package com.github.trang.druid.test;
 import com.alibaba.druid.pool.DruidDataSource;
 import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.test.context.ActiveProfiles;
 
 import static org.junit.Assert.assertEquals;
 
@@ -12,7 +11,6 @@ import static org.junit.Assert.assertEquals;
  *
  * @author trang
  */
-@ActiveProfiles("single")
 public class SingleDataSourceTests extends BaseTest {
 
     @Autowired
diff --git a/druid-spring-boot-starter/pom.xml b/druid-spring-boot-starter/pom.xml
index bbe49af..fff452f 100644
--- a/druid-spring-boot-starter/pom.xml
+++ b/druid-spring-boot-starter/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.github.drtrang</groupId>
         <artifactId>druid-spring-boot</artifactId>
-        <version>1.0.2</version>
+        <version>1.0.3-SNAPSHOT</version>
     </parent>
 
     <artifactId>druid-spring-boot-starter</artifactId>
diff --git a/pom.xml b/pom.xml
index 7694f96..ed8eaab 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.github.drtrang</groupId>
     <artifactId>druid-spring-boot</artifactId>
-    <version>1.0.2</version>
+    <version>1.0.3-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>${project.artifactId}</name>