diff --git a/build.sbt b/build.sbt
index 676b9d09..a02f2346 100644
--- a/build.sbt
+++ b/build.sbt
@@ -42,7 +42,7 @@ libraryDependencies ++= Seq(
   "com.github.scopt" %% "scopt" % "4.0.1",
   "org.typelevel" %% "cats-core" % "2.4.2",
   "org.jline" % "jline" % "3.19.0",
-  "com.lihaoyi" %% "ujson" % "1.3.8",
+  "com.lihaoyi" %% "ujson" % "1.3.9",
   "ru.lanwen.verbalregex" % "java-verbal-expressions" % "1.8",
   "org.scalatest" %% "scalatest" % "3.2.6" % "it,test",
   "com.github.tomakehurst" % "wiremock" % "2.27.2" % "it,test"