diff --git a/JsonHashRoute/build.sbt b/JsonHashRoute/build.sbt
index 9071a8a..ec49db5 100644
--- a/JsonHashRoute/build.sbt
+++ b/JsonHashRoute/build.sbt
@@ -1,3 +1,3 @@
 enablePlugins(ScalaJSPlugin)
 
-libraryDependencies += "com.lihaoyi" %%% "upickle" % "0.7.1"
+libraryDependencies += "com.lihaoyi" %%% "upickle" % "0.7.4"