diff --git a/project/Doc.scala b/project/Doc.scala
index daccacb404..40ad1a6e55 100644
--- a/project/Doc.scala
+++ b/project/Doc.scala
@@ -167,7 +167,7 @@ object BootstrapGenjavadoc extends AutoPlugin {
 
   override lazy val projectSettings = UnidocRoot.CliOptions.genjavadocEnabled
     .ifTrue(Seq(
-      unidocGenjavadocVersion := "0.12",
+      unidocGenjavadocVersion := "0.13",
       scalacOptions in Compile ++= Seq("-P:genjavadoc:fabricateParams=true", "-P:genjavadoc:suppressSynthetic=false")))
     .getOrElse(Nil)
 }