@@ -310,7 +310,7 @@ fn method_call_serialize() {
310310 id: Id::Num(1),
311311 };
312312
313− let serialized = serde_json::json!(&m);
313+ let serialized = serde_json::to_string(&m).unwrap();
314314 assert_eq!(
315315 serialized,
316316 r#"{"jsonrpc":"2.0","method":"update","params":[1,2],"id":1}"#
@@ -327,7 +327,7 @@ fn notification_serialize() {
327327 params: Params::Array(vec![Value::from(1), Value::from(2)]),
328328 };
329329
330− let serialized = serde_json::json!(&n);
330+ let serialized = serde_json::to_string(&n).unwrap();
331331 assert_eq!(
332332 serialized,
333333 r#"{"jsonrpc":"2.0","method":"update","params":[1,2]}"#