diff --git a/docs/build.sbt b/docs/build.sbt
index 39b4f4c2..b9fea259 100644
--- a/docs/build.sbt
+++ b/docs/build.sbt
@@ -10,7 +10,7 @@ lazy val docs = project
   .enablePlugins(PlayDocsPlugin)
   .configs(Configuration.of("Docs", "docs"))
   .settings(
-    scalaVersion := "2.13.18",
+    scalaVersion := "3.9.0",
     // use special snapshot play version for now
     resolvers ++= DefaultOptions.resolvers(snapshot = true),
     resolvers += Resolver.typesafeRepo("releases"),
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index f5d031b2..491e366d 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -4,7 +4,7 @@
 
 object Dependencies {
   val Scala212      = "2.12.21"
-  val Scala213      = "2.13.18"
+  val Scala213      = "3.9.0"
   val Scala3        = "3.3.8"
   val ScalaVersions = Seq(Scala212, Scala213, Scala3)
 }