diff --git a/flow/designs/src/mock-array/build.sbt b/flow/designs/src/mock-array/build.sbt
index dfca81a771..6954dda226 100644
--- a/flow/designs/src/mock-array/build.sbt
+++ b/flow/designs/src/mock-array/build.sbt
@@ -3,7 +3,7 @@ import scala.io.Source
 
 organization := "edu.berkeley.cs"
 
-scalaVersion := "2.13.10"
+scalaVersion := "2.13.11"
 
 scalacOptions ++= Seq("-deprecation", "-feature", "-unchecked", "-language:reflectiveCalls")