diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index acd97022..5dc9a467 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotest = "5.8.0"
-kotlin = "1.9.20"
+kotlin = "1.9.21"
 mockito = "5.7.0"
 
 [libraries]