diff --git a/DependencyGraph/DependencyGraph.csproj b/DependencyGraph/DependencyGraph.csproj
index ca1c8b2..af143bc 100644
--- a/DependencyGraph/DependencyGraph.csproj
+++ b/DependencyGraph/DependencyGraph.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="YamlDotNet" Version="5.2.1" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/DependencyGraphTest/DependencyGraphTest.csproj b/DependencyGraphTest/DependencyGraphTest.csproj
index 04c2202..9f9d605 100644
--- a/DependencyGraphTest/DependencyGraphTest.csproj
+++ b/DependencyGraphTest/DependencyGraphTest.csproj
@@ -16,7 +16,7 @@
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="NUnit" Version="3.11.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/DependencyGraphTest/packages.config b/DependencyGraphTest/packages.config
index 0de86ac..c50c159 100644
--- a/DependencyGraphTest/packages.config
+++ b/DependencyGraphTest/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net452" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net452" />
   <package id="NUnit" version="3.11.0" targetFramework="net452" />
 </packages>
\ No newline at end of file