diff --git a/CSACore/CSACore.csproj b/CSACore/CSACore.csproj
index 3d3cdb9..028b09b 100644
--- a/CSACore/CSACore.csproj
+++ b/CSACore/CSACore.csproj
@@ -22,7 +22,7 @@
     <Compile Remove="DynamicProperties.cs" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="Prolog">
diff --git a/TestProlog/TestScratchpad.csproj b/TestProlog/TestScratchpad.csproj
index 005cd61..7c8dd70 100644
--- a/TestProlog/TestScratchpad.csproj
+++ b/TestProlog/TestScratchpad.csproj
@@ -35,6 +35,6 @@
     <ProjectReference Include="..\Demo\Demo.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 </Project>