diff --git a/src/main/java/io/github/imfangs/dify/client/model/datasets/OperationData.java b/src/main/java/io/github/imfangs/dify/client/model/datasets/OperationData.java
index 85aa9e2..8e33588 100644
--- a/src/main/java/io/github/imfangs/dify/client/model/datasets/OperationData.java
+++ b/src/main/java/io/github/imfangs/dify/client/model/datasets/OperationData.java
@@ -26,7 +26,7 @@ public class OperationData {
     /**
      * 元数据列表
      */
-    private List<Metadata> metadataList ;
+    private List<Metadata> metadataList;
 
     /**
      * 元数据
@@ -53,5 +53,10 @@ public static class Metadata {
          * 元数据名称
          */
         private String name;
+
+        /**
+         * 元数据值
+         */
+        private String value;
     }
 }
diff --git a/src/test/java/io/github/imfangs/dify/client/DifyDatasetsClientTest.java b/src/test/java/io/github/imfangs/dify/client/DifyDatasetsClientTest.java
index 9508953..08ffc62 100644
--- a/src/test/java/io/github/imfangs/dify/client/DifyDatasetsClientTest.java
+++ b/src/test/java/io/github/imfangs/dify/client/DifyDatasetsClientTest.java
@@ -842,6 +842,7 @@ public void testUpdateDocumentMetadata() throws Exception {
                         setId(createResponse.getId());
                         setType(createResponse.getType());
                         setName("元数据名称");
+                        setValue("元数据值");
                     }});
                 }};
                 setMetadataList(metadataList);