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' ">
diff --git a/src/Nethereum.JsonRpc.RpcClient/Nethereum.JsonRpc.RpcClient.csproj b/src/Nethereum.JsonRpc.RpcClient/Nethereum.JsonRpc.RpcClient.csproj
index 778a89f07..540cc53fb 100644
--- a/src/Nethereum.JsonRpc.RpcClient/Nethereum.JsonRpc.RpcClient.csproj
+++ b/src/Nethereum.JsonRpc.RpcClient/Nethereum.JsonRpc.RpcClient.csproj
@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="EdjCase.JsonRpc.Client" Version="1.3.1" />
   </ItemGroup>