diff --git a/src/B2Net.csproj b/src/B2Net.csproj
index cb8b32b..2269f01 100644
--- a/src/B2Net.csproj
+++ b/src/B2Net.csproj
@@ -28,7 +28,7 @@
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5'">
     <PackageReference Include="Microsoft.NETCore.Portable.Compatibility" Version="1.0.1" />
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.IO" Version="4.3.0" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.2.0" />
@@ -42,7 +42,7 @@
     <Reference Include="System" />
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Net.Http" />
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
   <PropertyGroup Condition=" '$(TargetFramework)' == 'net45'">
     <DefineConstants>NET45;NETFULL</DefineConstants>