diff --git a/Source/Samples/Sample/TK.CustomMap.Sample/TK.CustomMap.Sample.csproj b/Source/Samples/Sample/TK.CustomMap.Sample/TK.CustomMap.Sample.csproj
index 6f72b9b..670abaf 100644
--- a/Source/Samples/Sample/TK.CustomMap.Sample/TK.CustomMap.Sample.csproj
+++ b/Source/Samples/Sample/TK.CustomMap.Sample/TK.CustomMap.Sample.csproj
@@ -10,7 +10,7 @@
     <None Remove="project.lock.json" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="Xamarin.Forms" Version="4.0.0.709238" />
   </ItemGroup>
   <ItemGroup>
diff --git a/Source/TK.CustomMap/TK.CustomMap.csproj b/Source/TK.CustomMap/TK.CustomMap.csproj
old mode 100755
new mode 100644
index 6785df2..96a0f3a
--- a/Source/TK.CustomMap/TK.CustomMap.csproj
+++ b/Source/TK.CustomMap/TK.CustomMap.csproj
@@ -23,7 +23,7 @@
     <None Remove="TK.CustomMap.nuget.targets" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="Xamarin.Forms" Version="4.0.0.709238" />
   </ItemGroup>
   <ProjectExtensions><VisualStudio><UserProperties XamarinHotReloadXFormsNugetUpgradeInfoBarTKCustomMapHideInfoBar="True" /></VisualStudio></ProjectExtensions>