diff --git a/SampleCodes/Chapter10/_04/_04.csproj b/SampleCodes/Chapter10/_04/_04.csproj
index ec0e313..b304530 100644
--- a/SampleCodes/Chapter10/_04/_04.csproj
+++ b/SampleCodes/Chapter10/_04/_04.csproj
@@ -1,11 +1,11 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="System.Data.SqlClient" Version="4.8.0" />
-  </ItemGroup>
-
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.Data.SqlClient" Version="4.8.6" />
+  </ItemGroup>
+
+</Project>