diff --git a/build.sbt b/build.sbt
index b30a70d6..888d72bd 100644
--- a/build.sbt
+++ b/build.sbt
@@ -282,7 +282,7 @@ lazy val binary = project
   )
   .settings(
     libraryDependencies ++= Seq(
-      "com.lihaoyi" %% "ujson" % "1.4.2"
+      "com.lihaoyi" %% "ujson" % "3.1.4"
     ) ++ scalaTest,
     mimaBinaryIssueFilters := Seq(
       // format: off