diff --git a/project/Build.scala b/project/Build.scala
index 149a5fac78cd..2ca002f05c28 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -83,7 +83,7 @@ object DottyJSPlugin extends AutoPlugin {
 object Build {
   import ScaladocConfigs._
 
-  val referenceVersion = "3.3.1-RC5"
+  val referenceVersion = "3.3.1-RC6"
 
   val baseVersion = "3.4.0-RC1"