diff --git a/build.gradle b/build.gradle
index cd66326..e633436 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,7 +32,7 @@ ext {
     set('lombokVersion', '1.18.10')
     set("junitVersion", "5.4.2")
 
-    String iamVersion = (System.getProperty("iamVersion") ?: "1.0.48")
+    String iamVersion = (System.getProperty("iamVersion") ?: "1.0.49")
     if (System.getProperty("snapshot") == "true") {
         set('iamVersion', iamVersion + "-SNAPSHOT")
     } else {
diff --git a/src/main/java/com/tencent/bk/sdk/iam/dto/manager/dto/SearchGroupDTO.java b/src/main/java/com/tencent/bk/sdk/iam/dto/manager/dto/SearchGroupDTO.java
index 869da4f..1831de5 100644
--- a/src/main/java/com/tencent/bk/sdk/iam/dto/manager/dto/SearchGroupDTO.java
+++ b/src/main/java/com/tencent/bk/sdk/iam/dto/manager/dto/SearchGroupDTO.java
@@ -7,8 +7,11 @@
 @Data
 @Builder
 public class SearchGroupDTO {
-    /*分级管理员是否继承查询子集管理员的用户组, 默认是*/
+    /*该值若为true,会查询所有的用户组；若为false，只会查询分级管理员级别的用户组，不包含二级管理员的用户组，不填默认true*/
     private Boolean inherit;
+    /*该值若为true，会查询所有的用户组，若为false，只会查询二级管理员的用户组的组*/
+    @JsonProperty("only_inherit")
+    private String onlyInherit;
     /*操作id筛选, 只支持自定义操作*/
     @JsonProperty("action_id")
     private String actionId;