diff --git a/build.sbt b/build.sbt
index e07ba3c..74d1c2e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -22,7 +22,7 @@ ThisBuild / tlCiReleaseBranches := Seq("main")
 // use JDK 11
 ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec.temurin("11"))
 
-val Scala213 = "2.13.15"
+val Scala213 = "2.13.16"
 ThisBuild / crossScalaVersions := Seq(Scala213, "3.3.4")
 ThisBuild / scalaVersion := Scala213 // the default Scala