diff --git a/Cryptolens.Licensing/Cryptolens.Licensing.csproj b/Cryptolens.Licensing/Cryptolens.Licensing.csproj
index b97e981..abc6e2a 100644
--- a/Cryptolens.Licensing/Cryptolens.Licensing.csproj
+++ b/Cryptolens.Licensing/Cryptolens.Licensing.csproj
@@ -36,7 +36,7 @@ NB: There is also one for C++ (https://github.com/Cryptolens/cryptolens-cpp)</De
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net40' or '$(TargetFramework)' == 'net46' or '$(TargetFramework)' == 'net35' or '$(TargetFramework)' == 'net45'">
-    <PackageReference Include="Newtonsoft.Json" Version="6.0.8" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
   <ItemGroup Condition="('$(TargetFramework)' == 'net46' or '$(TargetFramework)' == 'net47') and $(DefineConstants.Contains('SYSTEM_MANAGEMENT'))">
@@ -44,7 +44,7 @@ NB: There is also one for C++ (https://github.com/Cryptolens/cryptolens-cpp)</De
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' or '$(TargetFramework)' == 'net47' or '$(TargetFramework)' == 'net471' or '$(TargetFramework)' == 'net48'">
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' and $(DefineConstants.Contains('SYSTEM_MANAGEMENT'))">
diff --git a/SKM Test/packages.config b/SKM Test/packages.config
index daad10c..6a90722 100644
--- a/SKM Test/packages.config	
+++ b/SKM Test/packages.config	
@@ -3,7 +3,7 @@
   <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="net461" />
   <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="net461" />
   <package id="NETStandard.Library" version="1.6.1" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="System.AppContext" version="4.3.0" targetFramework="net461" requireReinstallation="true" />
   <package id="System.Collections" version="4.3.0" targetFramework="net461" />
   <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="net461" />