diff --git a/sbt/src/sbt-test/tests/scala-instance-classloader/build.sbt b/sbt/src/sbt-test/tests/scala-instance-classloader/build.sbt
index 7382a792f..3e73d9178 100644
--- a/sbt/src/sbt-test/tests/scala-instance-classloader/build.sbt
+++ b/sbt/src/sbt-test/tests/scala-instance-classloader/build.sbt
@@ -3,7 +3,7 @@ import sbt.internal.inc.ScalaInstance
 lazy val OtherScala = config("other-scala").hide
 lazy val junitinterface = "com.novocode" % "junit-interface" % "0.11"
 lazy val akkaActor = "com.typesafe.akka" %% "akka-actor" % "2.5.17"
-ThisBuild / scalaVersion := "2.12.12"
+ThisBuild / scalaVersion := "2.12.13"
 
 lazy val root = (project in file("."))
   .configs(OtherScala)