diff --git a/build.sbt b/build.sbt
index 39638bd..910592b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -6,7 +6,7 @@ scalaVersion := "2.13.5"
 
 libraryDependencies ++= Seq(
   "com.typesafe.akka" %% "akka-http" % "10.2.4",
-  "org.json4s" %% "json4s-native" % "3.6.11",
+  "org.json4s" %% "json4s-native" % "4.0.1",
   "com.typesafe.akka" %% "akka-http-testkit" % "10.2.4" % Test
 )
         
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