diff --git a/src/Nethereum.Desktop.Sample/packages.config b/src/Nethereum.Desktop.Sample/packages.config
index a0d3d4f63..f0c3c0366 100644
--- a/src/Nethereum.Desktop.Sample/packages.config
+++ b/src/Nethereum.Desktop.Sample/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="JsonRpc.Client" version="1.0.0-rc1-6" targetFramework="net451" />
   <package id="JsonRpc.Core" version="1.0.0-rc1-6" targetFramework="net451" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net451" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net451" />
   <package id="System.Net.Http" version="4.0.1-beta-23516" targetFramework="net45" />
   <package id="System.Runtime.InteropServices" version="4.0.21-beta-23516" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/Nethereum.Hex/Nethereum.Hex.csproj b/src/Nethereum.Hex/Nethereum.Hex.csproj
index db83118ce..8a5550e38 100644
--- a/src/Nethereum.Hex/Nethereum.Hex.csproj
+++ b/src/Nethereum.Hex/Nethereum.Hex.csproj
@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Condition=" '$(TargetFramework)' != 'net35'" Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Condition=" '$(TargetFramework)' != 'net35'" Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">
diff --git a/src/Nethereum.JsonRpc.Client/Nethereum.JsonRpc.Client.csproj b/src/Nethereum.JsonRpc.Client/Nethereum.JsonRpc.Client.csproj
index ff90ccc5e..dcc5a4986 100644
--- a/src/Nethereum.JsonRpc.Client/Nethereum.JsonRpc.Client.csproj
+++ b/src/Nethereum.JsonRpc.Client/Nethereum.JsonRpc.Client.csproj
@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Condition=" '$(TargetFramework)' != 'net35'" Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Condition=" '$(TargetFramework)' != 'net35'" Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">