diff --git a/build.sbt b/build.sbt
index 9da5756..a0f42a9 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,5 +1,5 @@
 val _version = "0.10.2-SNAPSHOT"
-val _json4sVersion = "3.6.12"
+val _json4sVersion = "4.0.4"
 val _playVersion = play.core.PlayVersion.current
 val _scalatestVersion = "3.2.10"