diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/entity/domain/SignPerOrgs.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/entity/domain/SignPerOrgs.java
index ce606111..7a02ef3a 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/entity/domain/SignPerOrgs.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/entity/domain/SignPerOrgs.java
@@ -24,6 +24,11 @@ public class SignPerOrgs {
 				.findFirst();
 	}
 
+	public void upsert(OrgPerson person, String recipientId) {
+		remove(person.getOuId());
+		add(person, recipientId);
+	}
+
 	public void remove(Long ouId) {
 		signPerOrg.removeIf(org -> org.getOuId().equals(ouId));
 	}
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
index dd2ee6fa..0c8beac4 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
@@ -148,8 +148,7 @@ public class EssService {
 						signPerson);
 				}
 			});
-			contract.getOrCreateAssignment().getSignPerOrgs().remove(request.getOuId());
-			contract.getOrCreateAssignment().getSignPerOrgs().add(signPerson, request.getRecipientId());
+			contract.getOrCreateAssignment().getSignPerOrgs().upsert(signPerson, request.getRecipientId());
 			essContractDao.updateAssigment(contract);
 		}
 		EssPerson superAdmin = contractManager.getContractSuperAdmin(contract);