diff --git a/src/org/redkale/source/DataSqlSource.java b/src/org/redkale/source/DataSqlSource.java
index 2735ecc62..b3cc27e90 100644
--- a/src/org/redkale/source/DataSqlSource.java
+++ b/src/org/redkale/source/DataSqlSource.java
@@ -1177,7 +1177,7 @@ public abstract class DataSqlSource<DBChannel> extends AbstractService implement
             if (blobs == null) return updateDB(info, null, sql, false);
             return updateDB(info, null, sql, true, blobs.toArray());
         } else {
-            final Serializable id = info.getSQLValue(info.getPrimary(), entity);
+            final Serializable id = (Serializable) info.getSQLValue(info.getPrimary(), entity);
             String sql = "UPDATE " + info.getTable(id) + " a SET " + setsql + " WHERE " + info.getPrimarySQLColumn() + " = " + FilterNode.formatToString(id);
             if (blobs == null) return updateDB(info, null, sql, false);
             return updateDB(info, null, sql, true, blobs.toArray());