diff --git a/build.sbt b/build.sbt
index 6937b19..933865d 100644
--- a/build.sbt
+++ b/build.sbt
@@ -42,7 +42,7 @@ libraryDependencies ++= Seq(
   "com.typesafe.play" %% "play-functional" % "2.8.1",
   "de.heikoseeberger" %% "akka-http-play-json" % "1.30.0",
   "org.julienrf" %% "play-json-derived-codecs" % "6.0.0",
-  "com.lihaoyi" %% "pprint" % "0.5.6"
+  "com.lihaoyi" %% "pprint" % "0.5.9"
 )
 
 resolvers ++= Seq(