diff --git a/yshop-shop/src/main/java/co/yixiang/modules/shop/domain/YxMaterialGroup.java b/yshop-shop/src/main/java/co/yixiang/modules/shop/domain/YxMaterialGroup.java
index 0cdb280e..8c001fe9 100644
--- a/yshop-shop/src/main/java/co/yixiang/modules/shop/domain/YxMaterialGroup.java
+++ b/yshop-shop/src/main/java/co/yixiang/modules/shop/domain/YxMaterialGroup.java
@@ -24,7 +24,7 @@ import java.io.Serializable;
 public class YxMaterialGroup implements Serializable {
 
     /** PK */
-    @TableId
+    @TableId(type = IdType.UUID)
     private String id;
 
     /** 逻辑删除标记（0：显示；1：隐藏） */