diff --git a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/WeixinProxy.java b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/WeixinProxy.java
index 4866b112..64719b26 100644
--- a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/WeixinProxy.java
+++ b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/WeixinProxy.java
@@ -336,9 +336,9 @@ public class WeixinProxy {
 	 *      "https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1444738732&token=&lang=zh_CN">
 	 *      更新永久图文素材</a>
 	 */
-	public JsonResult updateMaterialArticle(String mediaId, int index, List<MpArticle> articles)
+	public JsonResult updateMaterialArticle(String mediaId, int index, MpArticle article)
 			throws WeixinException {
-		return mediaApi.updateMaterialArticle(mediaId, index, articles);
+		return mediaApi.updateMaterialArticle(mediaId, index, article);
 	}
 
 	/**
diff --git a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/MediaApi.java b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/MediaApi.java
index c10273d5..95e66087 100644
--- a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/MediaApi.java
+++ b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/MediaApi.java
@@ -355,11 +355,11 @@ public class MediaApi extends MpApi {
 	 *      href="https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1444738732&token=&lang=zh_CN">更新永久图文素材</a>
 	 */
 	public JsonResult updateMaterialArticle(String mediaId, int index,
-			List<MpArticle> articles) throws WeixinException {
+			MpArticle article) throws WeixinException {
 		Token token = tokenHolder.getToken();
 		String material_article_update_uri = getRequestUri("material_article_update_uri");
 		JSONObject obj = new JSONObject();
-		obj.put("articles", articles);
+		obj.put("articles", article);
 		obj.put("media_id", mediaId);
 		obj.put("index", index);
 		WeixinResponse response = weixinExecutor.post(
diff --git a/weixin4j-mp/src/test/java/com/foxinmy/weixin4j/mp/test/MediaTest.java b/weixin4j-mp/src/test/java/com/foxinmy/weixin4j/mp/test/MediaTest.java
index 46fa08e6..5681b239 100644
--- a/weixin4j-mp/src/test/java/com/foxinmy/weixin4j/mp/test/MediaTest.java
+++ b/weixin4j-mp/src/test/java/com/foxinmy/weixin4j/mp/test/MediaTest.java
@@ -107,15 +107,13 @@ public class MediaTest extends TokenTest {
 
 	@Test
 	public void updateMaterialArticle() throws WeixinException {
-		MpArticle mpArticle = new MpArticle("8790403529", "title", "content");
-		mpArticle.setAuthor("author_update");
-		mpArticle.setDigest("digest_update");
-		mpArticle.setShowCoverPic(false);
-		mpArticle.setSourceUrl("http://www.baidu.com");
-		List<MpArticle> articles = new ArrayList<MpArticle>();
-		articles.add(mpArticle);
+		MpArticle article = new MpArticle("8790403529", "title", "content");
+		article.setAuthor("author_update");
+		article.setDigest("digest_update");
+		article.setShowCoverPic(false);
+		article.setSourceUrl("http://www.baidu.com");
 		JsonResult result = mediaApi.updateMaterialArticle("17385064953", 0,
-				articles);
+				article);
 		System.err.println(result);
 		// 17385065153
 	}