diff --git a/logbook-parent/pom.xml b/logbook-parent/pom.xml
index 47f67fecc..0580b1121 100644
--- a/logbook-parent/pom.xml
+++ b/logbook-parent/pom.xml
@@ -30,7 +30,7 @@
 
         <jackson.version>2.18.0</jackson.version>
         <json-path.version>2.9.0</json-path.version>
-        <kotlin.version>2.0.20</kotlin.version>
+        <kotlin.version>2.0.21</kotlin.version>
         <ktor.version>2.3.12</ktor.version>
         <netty.version>4.1.114.Final</netty.version>
         <reactor-netty.version>1.1.22</reactor-netty.version>