diff --git a/src/NSwag.Annotations/NSwag.Annotations.csproj b/src/NSwag.Annotations/NSwag.Annotations.csproj
index 9e41d33112..25c9941255 100644
--- a/src/NSwag.Annotations/NSwag.Annotations.csproj
+++ b/src/NSwag.Annotations/NSwag.Annotations.csproj
@@ -21,7 +21,7 @@
     <DefineConstants>TRACE;DEBUG</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net45'">
     <Reference Include="Microsoft.CSharp" />