diff --git a/solid.practices.tests/solid.practices.tests.csproj b/solid.practices.tests/solid.practices.tests.csproj
index d847912..0f8c091 100644
--- a/solid.practices.tests/solid.practices.tests.csproj
+++ b/solid.practices.tests/solid.practices.tests.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="xunit" Version="2.4.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
   </ItemGroup>
diff --git a/solid.practices/solid.practices.csproj b/solid.practices/solid.practices.csproj
index b340cfb..af1251e 100644
--- a/solid.practices/solid.practices.csproj
+++ b/solid.practices/solid.practices.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
   <ItemGroup>