diff --git a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/GroupApi.java b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/GroupApi.java
index aaebbaab..355d3b5c 100644
--- a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/GroupApi.java
+++ b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/GroupApi.java
@@ -47,8 +47,8 @@ public class GroupApi extends MpApi {
 		WeixinResponse response = weixinExecutor.post(
 				String.format(group_create_uri, token.getAccessToken()),
 				group.toCreateJson());
-
-		return response.getAsJson().getObject("group", Group.class);
+		return JSON.parseObject(response.getAsJson().getString("group"),
+				Group.class);
 	}
 
 	/**
@@ -63,8 +63,8 @@ public class GroupApi extends MpApi {
 	public List<Group> getGroups() throws WeixinException {
 		String group_get_uri = getRequestUri("group_get_uri");
 		Token token = tokenManager.getCache();
-		WeixinResponse response = weixinExecutor.get(String.format(group_get_uri,
-				token.getAccessToken()));
+		WeixinResponse response = weixinExecutor.get(String.format(
+				group_get_uri, token.getAccessToken()));
 
 		return JSON.parseArray(response.getAsJson().getString("groups"),
 				Group.class);
@@ -132,8 +132,8 @@ public class GroupApi extends MpApi {
 			throws WeixinException {
 		String group_move_uri = getRequestUri("group_move_uri");
 		Token token = tokenManager.getCache();
-		WeixinResponse response = weixinExecutor.post(String.format(group_move_uri,
-				token.getAccessToken()), String.format(
+		WeixinResponse response = weixinExecutor.post(String.format(
+				group_move_uri, token.getAccessToken()), String.format(
 				"{\"openid\":\"%s\",\"to_groupid\":%d}", openId, groupId));
 
 		return response.getAsResult();
diff --git a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/model/Tag.java b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/model/Tag.java
index 9656fc27..11176a12 100644
--- a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/model/Tag.java
+++ b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/model/Tag.java
@@ -31,7 +31,6 @@ public class Tag implements Serializable {
 	 */
 	private int count;
 
-	@JSONCreator
 	public Tag(@JSONField(name = "id") int id,
 			@JSONField(name = "name") String name) {
 		this(id, name, 0);