diff --git a/argonaut/build.sbt b/argonaut/build.sbt
index c05ad58..0292f8f 100644
--- a/argonaut/build.sbt
+++ b/argonaut/build.sbt
@@ -3,5 +3,5 @@ name := "scalatest-argonaut"
 libraryDependencies ++= Seq(
   "org.scalatest" %% "scalatest" % "3.2.9",
   "io.argonaut" %% "argonaut" % "6.3.6",
-  "com.softwaremill.diffx" %% "diffx-core" % "0.3.30"
+  "com.softwaremill.diffx" %% "diffx-core" % "0.5.3"
 )
diff --git a/jsoniter-scala/build.sbt b/jsoniter-scala/build.sbt
index f3308d9..707baf2 100644
--- a/jsoniter-scala/build.sbt
+++ b/jsoniter-scala/build.sbt
@@ -4,5 +4,5 @@ libraryDependencies ++= Seq(
   "org.scalatest" %% "scalatest" % "3.2.9",
   "com.github.plokhotnyuk.jsoniter-scala" %% "jsoniter-scala-core"   % "2.9.1",
   "com.github.plokhotnyuk.jsoniter-scala" %% "jsoniter-scala-macros" % "2.9.1" % "provided",
-  "com.softwaremill.diffx" %% "diffx-core" % "0.3.30"
+  "com.softwaremill.diffx" %% "diffx-core" % "0.5.3"
 )