diff --git a/engine/test/LineSegmentTests/LineSegmentTests.csproj b/engine/test/LineSegmentTests/LineSegmentTests.csproj
index decde2e..6149fca 100644
--- a/engine/test/LineSegmentTests/LineSegmentTests.csproj
+++ b/engine/test/LineSegmentTests/LineSegmentTests.csproj
@@ -33,7 +33,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="Poly2Tri" Version="1.0.1" />
     <PackageReference Include="System.ValueTuple" Version="4.4.0" />
   </ItemGroup>