diff --git a/build.sbt b/build.sbt
index e136f38d..0613e924 100644
--- a/build.sbt
+++ b/build.sbt
@@ -12,7 +12,7 @@ ThisBuild / startYear := Some(2017)
 ThisBuild / tlSonatypeUseLegacyHost := false
 
 val Scala213 = "2.13.14"
-ThisBuild / crossScalaVersions := Seq(Scala213, "2.12.20", "3.4.1")
+ThisBuild / crossScalaVersions := Seq(Scala213, "2.12.20", "3.4.3")
 ThisBuild / scalaVersion := Scala213 // the default Scala
 ThisBuild / tlJdkRelease := Some(8)