diff --git a/config/libs.versions.toml b/config/libs.versions.toml
index 9661eeef47..54c95647b2 100644
--- a/config/libs.versions.toml
+++ b/config/libs.versions.toml
@@ -13,7 +13,7 @@ javaxJsonVer = "1.1.4"
 jfxVer = "23.0.1"
 jnaVer = "5.18.0"
 kotlinSerVer = "1.11.0"
-kotlinVer = "2.2.21"
+kotlinVer = "2.4.20-neptune-251"
 mockitoCoreVer = "5.23.0"
 nashornVer = "15.7"
 seleniumVer = "4.43.0"