diff --git a/manager/src/main/java/org/jiayunet/pojo/po/Job.java b/manager/src/main/java/org/jiayunet/pojo/po/Job.java
index c7448ac..27f0d75 100644
--- a/manager/src/main/java/org/jiayunet/pojo/po/Job.java
+++ b/manager/src/main/java/org/jiayunet/pojo/po/Job.java
@@ -77,6 +77,9 @@ public class Job {
     /** 爬虫原始数据ID，用于去重 */
     private String sourceId;
 
+    /** 内容哈希，用于去重续命 */
+    private String contentHash;
+
     /** 招聘分类 0=校招 1=实习 2=社招 3=其他 */
     private Integer recruitCategory;