diff --git a/VSCode/Chapter10/Ch10_Serialization/Ch10_Serialization.csproj b/VSCode/Chapter10/Ch10_Serialization/Ch10_Serialization.csproj
old mode 100755
new mode 100644
index 169c260..c6e36f3
--- a/VSCode/Chapter10/Ch10_Serialization/Ch10_Serialization.csproj
+++ b/VSCode/Chapter10/Ch10_Serialization/Ch10_Serialization.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="System.Xml.XmlSerializer" 
                       Version="4.3.0" />
     <PackageReference Include="Newtonsoft.Json" 
-                      Version="9.0.1" />
+                      Version="13.0.1" />
   </ItemGroup>
 
 </Project>