diff --git a/jte-kotlin/pom.xml b/jte-kotlin/pom.xml
index fda56369..3c650641 100644
--- a/jte-kotlin/pom.xml
+++ b/jte-kotlin/pom.xml
@@ -16,7 +16,7 @@
     <properties>
         <maven.deploy.skip>false</maven.deploy.skip>
         <skipNexusStagingDeployMojo>false</skipNexusStagingDeployMojo>
-        <kotlin.version>1.8.10</kotlin.version>
+        <kotlin.version>1.9.10</kotlin.version>
     </properties>
 
     <dependencies>
diff --git a/test/jte-runtime-cp-test-gradle-kotlin-convention/build.gradle.kts b/test/jte-runtime-cp-test-gradle-kotlin-convention/build.gradle.kts
index f64c0cf7..0dc9a0e5 100644
--- a/test/jte-runtime-cp-test-gradle-kotlin-convention/build.gradle.kts
+++ b/test/jte-runtime-cp-test-gradle-kotlin-convention/build.gradle.kts
@@ -1,7 +1,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.8.10"
+    kotlin("jvm") version "1.9.10"
     id("gg.jte.gradle") version("3.0.4-SNAPSHOT")
 }
 
diff --git a/test/jte-runtime-cp-test-gradle-kotlin/build.gradle.kts b/test/jte-runtime-cp-test-gradle-kotlin/build.gradle.kts
index d9764ef5..c328b8e6 100644
--- a/test/jte-runtime-cp-test-gradle-kotlin/build.gradle.kts
+++ b/test/jte-runtime-cp-test-gradle-kotlin/build.gradle.kts
@@ -2,7 +2,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import java.nio.file.Paths
 
 plugins {
-    kotlin("jvm") version "1.8.10"
+    kotlin("jvm") version "1.9.10"
     id("gg.jte.gradle") version("3.0.4-SNAPSHOT")
 }