diff --git a/build.sbt b/build.sbt
index 1e272ae..e7f8f14 100644
--- a/build.sbt
+++ b/build.sbt
@@ -16,7 +16,7 @@ ThisBuild / tlCiReleaseBranches        := Seq("main")
 ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec.temurin("21"))
 
 val Scala213 = "2.13.13"
-ThisBuild / crossScalaVersions := Seq(Scala213, "3.3.3")
+ThisBuild / crossScalaVersions := Seq(Scala213, "3.4.1")
 ThisBuild / scalaVersion       := Scala213 // the default Scala
 
 lazy val core =