diff --git a/dotnet/LitterBox.Memory/LitterBox.Memory.csproj b/dotnet/LitterBox.Memory/LitterBox.Memory.csproj
index 28ba549..f66840e 100644
--- a/dotnet/LitterBox.Memory/LitterBox.Memory.csproj
+++ b/dotnet/LitterBox.Memory/LitterBox.Memory.csproj
@@ -44,7 +44,7 @@
 
     <ItemGroup>
         <PackageReference Include="LitterBox" Version="6.2.2" />
-        <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
         <PackageReference Include="StyleCop.Analyzers" Version="1.0.2" />
     </ItemGroup>
 
diff --git a/dotnet/LitterBox/LitterBox.csproj b/dotnet/LitterBox/LitterBox.csproj
index 2844848..a714b03 100644
--- a/dotnet/LitterBox/LitterBox.csproj
+++ b/dotnet/LitterBox/LitterBox.csproj
@@ -43,7 +43,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
         <PackageReference Include="StyleCop.Analyzers" Version="1.0.2" />
     </ItemGroup>