diff --git a/benchmark/build.sbt b/benchmark/build.sbt
index b9e285b..1e4cbb1 100644
--- a/benchmark/build.sbt
+++ b/benchmark/build.sbt
@@ -6,8 +6,8 @@ libraryDependencies ++= {
   if (scalaBinaryVersion.value.startsWith("2.12"))
     Seq(
       "io.github.argonaut-io" %% "argonaut" % "6.3.11",
-      "org.json4s" %% "json4s-native" % "4.0.7",
-      "org.json4s" %% "json4s-jackson" % "4.0.7",
+      "io.github.json4s" %% "json4s-native" % "4.1.0",
+      "io.github.json4s" %% "json4s-jackson" % "4.1.0",
       "org.playframework" %% "play-json" % "3.0.6",
       "com.rojoma" %% "rojoma-json" % "2.4.3",
       "com.rojoma" %% "rojoma-json-v3" % "3.15.0",