diff --git a/README.md b/README.md
index 0ce0853..add1696 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # mobibot
 
 [![License (3-Clause BSD)](https://img.shields.io/badge/license-BSD%203--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)
-[![Kotlin](https://img.shields.io/badge/kotlin-1.9.22-7f52ff.svg)](https://kotlinlang.org)
+[![Kotlin](https://img.shields.io/badge/kotlin-1.9.23-7f52ff.svg)](https://kotlinlang.org)
 [![bld](https://img.shields.io/badge/1.9.0-FA9052?label=bld&labelColor=2392FF)](https://rife2.com/bld)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=ethauvin_mobibot&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=ethauvin_mobibot)
 [![GitHub CI](https://github.com/ethauvin/mobibot/actions/workflows/bld.yml/badge.svg)](https://github.com/ethauvin/mobibot/actions/workflows/bld.yml)
diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index 95b4a2e..c51811b 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -2,7 +2,7 @@ bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.extension-jacoco=com.uwyn.rife2:bld-jacoco-report:0.9.3
 bld.extensions=com.uwyn.rife2:bld-generated-version:0.9.5
-bld.extensions-kotlin=com.uwyn.rife2:bld-kotlin:0.9.1
+bld.extensions-kotlin=com.uwyn.rife2:bld-kotlin:0.9.3
 bld.extensions-detekt=com.uwyn.rife2:bld-detekt:0.9.2
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.downloadLocation=
diff --git a/src/bld/java/net/thauvin/erik/MobibotBuild.java b/src/bld/java/net/thauvin/erik/MobibotBuild.java
index 087affa..fee0f1f 100644
--- a/src/bld/java/net/thauvin/erik/MobibotBuild.java
+++ b/src/bld/java/net/thauvin/erik/MobibotBuild.java
@@ -75,7 +75,7 @@ public class MobibotBuild extends Project {
                 SONATYPE_SNAPSHOTS_LEGACY);
 
         var log4j = version(2, 23, 0);
-        var kotlin = version(1, 9, 22);
+        var kotlin = version(1, 9, 23);
         scope(compile)
                 // PircBotX
                 .include(dependency("com.github.pircbotx", "pircbotx", "2.3.1"))