diff --git a/CityDBTest.csproj b/CityDBTest.csproj
index eef7d49..2732c08 100644
--- a/CityDBTest.csproj
+++ b/CityDBTest.csproj
@@ -10,7 +10,7 @@
     <PackageReference Include="Dapper.Mapper" Version="2.0.0" />
     <PackageReference Include="MySql.Data" Version="8.0.19" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.7.0" />
-    <PackageReference Include="System.Data.SqlClient" Version="4.8.1" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.8.6" />
   </ItemGroup>
 
 </Project>