diff --git a/pom.xml b/pom.xml
index 76831020..c702ef32 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,7 +51,7 @@
         <mockk.version>1.13.8</mockk.version>
         <kotest.version>5.5.3</kotest.version>
 
-        <kotlin.version>1.9.20</kotlin.version>
+        <kotlin.version>1.9.21</kotlin.version>
         <kotlinx-coroutines.version>1.7.3</kotlinx-coroutines.version>
         <kotlinx-coroutines-debug.version>1.7.3</kotlinx-coroutines-debug.version>
 
diff --git a/video-series-mono/pom.xml b/video-series-mono/pom.xml
index c9bdd075..579a5466 100644
--- a/video-series-mono/pom.xml
+++ b/video-series-mono/pom.xml
@@ -15,7 +15,7 @@
 	<description>Single control project to keep green as a checkup for Axon</description>
 
     <properties>
-        <kotlin.version>1.9.20</kotlin.version>
+        <kotlin.version>1.9.21</kotlin.version>
     </properties>
 
     <dependencies>