diff --git a/build.sc b/build.sc
index c4b736414..126252e9e 100644
--- a/build.sc
+++ b/build.sc
@@ -345,7 +345,7 @@ object ujson extends Module{
     def artifactName = "ujson-argonaut"
     def platformSegment = "jvm"
     def moduleDeps = Seq(ujson.jvm())
-    def ivyDeps = Agg(ivy"io.argonaut::argonaut:6.2.6")
+    def ivyDeps = Agg(ivy"io.argonaut::argonaut:6.3.8")
   }
   object json4s extends Cross[Json4sModule](scalaJVMVersions:_*)
   class Json4sModule(val crossScalaVersion: String) extends CommonPublishModule{
@@ -456,7 +456,7 @@ trait BenchModule extends CommonModule{
     ivy"io.circe::circe-generic::0.14.5",
     ivy"io.circe::circe-parser::0.14.5",
     ivy"com.typesafe.play::play-json::2.9.4",
-    ivy"io.argonaut::argonaut:6.2.6",
+    ivy"io.argonaut::argonaut:6.3.8",
     ivy"org.json4s::json4s-ast:3.6.12",
     ivy"com.lihaoyi::sourcecode::$sourcecode",
   )