diff --git a/build.sbt b/build.sbt
index a312b19..a93d21c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -30,7 +30,7 @@ lazy val notPublish = Seq(
 
 val buildSettings = Seq(
   scalaVersion := "2.11.12",
-  crossScalaVersions := Seq("2.11.12", "2.12.20", "2.13.14"),
+  crossScalaVersions := Seq("2.11.12", "2.12.20", "2.13.15"),
   resolvers += Resolver.sonatypeRepo("snapshots"),
   resolvers += Resolver.sonatypeRepo("releases"),
   scalacOptions ++= Seq("-deprecation"),