diff --git a/build.sbt b/build.sbt
index 9b75082..52ebaa3 100644
--- a/build.sbt
+++ b/build.sbt
@@ -16,7 +16,7 @@ publishTo := Some(Resolver.evolutionReleases)
 
 scalaVersion := crossScalaVersions.value.head
 
-crossScalaVersions := Seq("2.13.18", "3.3.8")
+crossScalaVersions := Seq("3.9.0", "3.3.8")
 
 versionPolicyIntention := BinaryCompatible