diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
index beca78876..16fda19a6 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
@@ -309,6 +309,11 @@ WHERE tgrelid = '"+tableName+"'::regclass");
                 string sql = string.Format(AddDefaultValueSql, this.SqlBuilder.GetTranslationColumnName(tableName), this.SqlBuilder.GetTranslationColumnName(columnName), defaultValue.Replace("''","'").TrimEnd('\'').TrimStart('\''));
                 return this.Context.Ado.ExecuteCommand(sql) > 0;
             }
+            else if (defaultValue?.ToLower()?.Contains("now()") == true)
+            {
+                string sql = string.Format(AddDefaultValueSql, this.SqlBuilder.GetTranslationColumnName(tableName), this.SqlBuilder.GetTranslationColumnName(columnName), defaultValue.TrimEnd('\'').TrimStart('\''));
+                return this.Context.Ado.ExecuteCommand(sql) > 0;
+            }
             else
             {
                 return base.AddDefaultValue(this.SqlBuilder.GetTranslationTableName(tableName), this.SqlBuilder.GetTranslationTableName(columnName), defaultValue);
diff --git a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
index d56229fdb..82683cd7f 100644
--- a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
+++ b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>SqlSugarCore</id>
-    <version>5.1.4.154-preview11</version>
+    <version>5.1.4.154-preview12</version>
     <authors>sunkaixuan</authors>
     <owners>果糖大数据科技</owners>
     <licenseUrl>http://www.apache.org/licenses/LICENSE-2.0.html</licenseUrl>