diff --git a/build.sbt b/build.sbt
index 3417306..06a9c62 100644
--- a/build.sbt
+++ b/build.sbt
@@ -184,7 +184,7 @@ lazy val kotest = (project in file("kotest"))
     ),
     crossPaths       := false,
     autoScalaLibrary := false,
-    kotlinVersion    := "2.2.21",
+    kotlinVersion    := "2.3.20",
     kotlincOptions ++= Seq(
       "-progressive",
       "-language-version=2.2",