diff --git a/irule-tool.csproj b/irule-tool.csproj
old mode 100755
new mode 100644
index 37ed645..94c4d23
--- a/irule-tool.csproj
+++ b/irule-tool.csproj
@@ -5,7 +5,7 @@
     <PackageReference Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
     <PackageReference Include="NETStandard.Library" Version="2.0.3"/>
     <PackageReference Include="EPPlus.Core" Version="1.5.1"/>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3"/>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2"/>
     
   </ItemGroup>