diff --git a/src/Mockaroo/Mockaroo.csproj b/src/Mockaroo/Mockaroo.csproj
index 20e18a3..207fec2 100644
--- a/src/Mockaroo/Mockaroo.csproj
+++ b/src/Mockaroo/Mockaroo.csproj
@@ -22,7 +22,7 @@
     <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
   <ItemGroup>
     <Compile Update="DataType.cs">
diff --git a/tests/Mockaroo.MSTest/Mockaroo.MSTest.csproj b/tests/Mockaroo.MSTest/Mockaroo.MSTest.csproj
index 219d440..7b52434 100644
--- a/tests/Mockaroo.MSTest/Mockaroo.MSTest.csproj
+++ b/tests/Mockaroo.MSTest/Mockaroo.MSTest.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />
     <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="Shouldly" Version="3.0.2" />
   </ItemGroup>