diff --git a/csharp/AdventureWorksLT.WpfApp/AdventureWorksLT.WpfApp.csproj b/csharp/AdventureWorksLT.WpfApp/AdventureWorksLT.WpfApp.csproj
index 0638de4..51e4a1f 100644
--- a/csharp/AdventureWorksLT.WpfApp/AdventureWorksLT.WpfApp.csproj
+++ b/csharp/AdventureWorksLT.WpfApp/AdventureWorksLT.WpfApp.csproj
@@ -62,8 +62,9 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
-    <Reference Include="System.Data.SqlClient, Version=4.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Data.SqlClient.4.6.0\lib\net461\System.Data.SqlClient.dll</HintPath>
+    <Reference Include="System.Data.SqlClient, Version=4.6.1.6, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+      <HintPath>..\packages\System.Data.SqlClient.4.8.6\lib\net461\System.Data.SqlClient.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Drawing" />
     <Reference Include="System.Windows.Forms" />
diff --git a/csharp/AdventureWorksLT.WpfApp/packages.config b/csharp/AdventureWorksLT.WpfApp/packages.config
index 01b0de8..bde8704 100644
--- a/csharp/AdventureWorksLT.WpfApp/packages.config
+++ b/csharp/AdventureWorksLT.WpfApp/packages.config
@@ -3,5 +3,5 @@
   <package id="DevZest.Data" version="1.0.0" targetFramework="net461" />
   <package id="DevZest.Data.SqlServer" version="1.0.0" targetFramework="net461" />
   <package id="DevZest.Data.WPF" version="1.0.0" targetFramework="net461" />
-  <package id="System.Data.SqlClient" version="4.6.0" targetFramework="net461" />
+  <package id="System.Data.SqlClient" version="4.8.6" targetFramework="net461" />
 </packages>
\ No newline at end of file