diff --git a/build.sbt b/build.sbt
index 32cebe8..a2159c7 100644
--- a/build.sbt
+++ b/build.sbt
@@ -10,7 +10,7 @@ ThisBuild / githubWorkflowPublishTargetBranches := Seq(
   RefPredicate.StartsWith(Ref.Tag("v")),
 )
 
-ThisBuild / scalaVersion := "3.8.4"
+ThisBuild / scalaVersion := "3.9.0"
 ThisBuild / tlJdkRelease := Some(17)
 ThisBuild / tlFatalWarnings := false
 ThisBuild / resolvers += Resolver.sonatypeCentralSnapshots