diff --git a/src/Ptncafe.GraphQLTest.Proxy/Ptncafe.GraphQLTest.Proxy.csproj b/src/Ptncafe.GraphQLTest.Proxy/Ptncafe.GraphQLTest.Proxy.csproj
index 6da2999..1cfdee3 100644
--- a/src/Ptncafe.GraphQLTest.Proxy/Ptncafe.GraphQLTest.Proxy.csproj
+++ b/src/Ptncafe.GraphQLTest.Proxy/Ptncafe.GraphQLTest.Proxy.csproj
@@ -7,7 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.7" />
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="2.2.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
   </ItemGroup>