diff --git a/build.sbt b/build.sbt
index f4eb3f5..f5382d7 100644
--- a/build.sbt
+++ b/build.sbt
@@ -12,7 +12,7 @@ ThisBuild / startYear := Some(2014)
 // publish website from this branch
 ThisBuild / tlSitePublishBranch := Some("main")
 
-val Scala213 = "2.13.14"
+val Scala213 = "2.13.15"
 ThisBuild / crossScalaVersions := Seq(Scala213, "2.12.19", "3.3.4")
 ThisBuild / scalaVersion := Scala213 // the default Scala
 ThisBuild / tlJdkRelease := Some(11)