Fix json4s version

Author: giiita

build.sbt

@@ -4,7 +4,7 @@ version := "1.0"
 
 scalaVersion := "2.13.5"
 
-val json4sVersion = "3.7.0-M11"
+val json4sVersion = "4.0.3"
 val circeVersion = "0.13.0"
 
 resolvers ++=

src/main/scala/jsonperf/JsonTest.scala

@@ -49,7 +49,7 @@ abstract class JsonTest[A <: AnyRef](implicit ev: scala.reflect.Manifest[A]) ext
     import org.json4s.native.Serialization
     implicit val formats = DefaultFormats
     override def deserialize(json: String): A = {
-      parse(json).extract[A]
+      org.json4s.native.JsonMethods.parse(json).extract[A]
     }
     override def serialize(a: A): String = {
       Serialization.write(a)