diff --git a/src/Api/PubnubApi/PubnubApi.csproj b/src/Api/PubnubApi/PubnubApi.csproj
index a44e2e48f..c4182e12c 100644
--- a/src/Api/PubnubApi/PubnubApi.csproj
+++ b/src/Api/PubnubApi/PubnubApi.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFrameworks>net35;net40;net45;net461;net48</TargetFrameworks>
@@ -62,7 +62,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1">
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1">
       <PrivateAssets>None</PrivateAssets>
     </PackageReference>
     <PackageReference Include="PeterO.Cbor" Version="4.5.2" />
diff --git a/src/UnitTests/PubnubApi.Tests/PubnubApi.Tests.csproj b/src/UnitTests/PubnubApi.Tests/PubnubApi.Tests.csproj
index ae358d01b..5953afb6a 100644
--- a/src/UnitTests/PubnubApi.Tests/PubnubApi.Tests.csproj
+++ b/src/UnitTests/PubnubApi.Tests/PubnubApi.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <!--<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />-->
   <PropertyGroup>
     <TargetFrameworks>net35;net40;net45;net461;net48</TargetFrameworks>
@@ -37,7 +37,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1">
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1">
       <PrivateAssets>None</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />