diff --git a/ProMa/ProMa.csproj b/ProMa/ProMa.csproj
index 2a4d21d..9c9619d 100644
--- a/ProMa/ProMa.csproj
+++ b/ProMa/ProMa.csproj
@@ -25,7 +25,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.0.0" />
     <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="2.0.1" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.1" />
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.4.0" />
   </ItemGroup>