Method not found: JSchemaValidatingReader

[Welchen]

Sometimes we are having an error of:

`Method not found: 'Void Newtonsoft.Json.Schema.JSchemaValidatingReader..ctor(Newtonsoft.Json.JsonReader)'.

Stack trace:
System.MissingMethodException: Method not found: 'Void Newtonsoft.Json.Schema.JSchemaValidatingReader..ctor(Newtonsoft.Json.JsonReader)'.
`

This seems to occur when Newtonsoft 12 is loaded in but not Newtonsoft 13, which we need. Jschema still references 12 and tries to load it. Could we get JSchema to be updated to 13?