diff --git a/工作单元.md b/工作单元.md
index 4156bbc..9d72761 100644
--- a/工作单元.md
+++ b/工作单元.md
@@ -37,7 +37,7 @@ using (var uow = fsql.CreateUnitOfWork())
 
 ```csharp
 // 场景：已经有一个开启的 Connection 和 Transaction
-using (var conn = new Microsoft.Data.SqlClient.SqlConnection("..."))
+using (var conn = new SqlConnection("..."))
 {
     conn.Open();
     using (var tran = conn.BeginTransaction())