diff --git a/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/reportdoc/service/ReportDocumentMainServiceImpl.java b/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/reportdoc/service/ReportDocumentMainServiceImpl.java
index 32d912d..d2a7b0f 100644
--- a/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/reportdoc/service/ReportDocumentMainServiceImpl.java
+++ b/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/reportdoc/service/ReportDocumentMainServiceImpl.java
@@ -501,7 +501,7 @@ public class ReportDocumentMainServiceImpl implements ReportDocumentMainService,
     private void assembleSignature(String currentActivityId, ReportDocumentMainDO entity){
         if(ObjectUtils.isEmpty(currentActivityId) || "null".equals(currentActivityId))
             return;
-        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
         String sign = entity.getDocumentSignature();
         JSONObject signObj = new JSONObject();
         if(!ObjectUtils.isEmpty( sign))