diff --git a/jOOQ-codegen-gradle/build.gradle.kts b/jOOQ-codegen-gradle/build.gradle.kts
index e0cecf8afc..0fe9edb03a 100644
--- a/jOOQ-codegen-gradle/build.gradle.kts
+++ b/jOOQ-codegen-gradle/build.gradle.kts
@@ -3,7 +3,6 @@ import org.gradle.kotlin.dsl.groovy
 plugins {
     id("java")
     id("groovy")
-    kotlin("jvm") version "1.9.20"
     id("com.gradle.plugin-publish") version "1.2.0"
 }
 
@@ -12,10 +11,6 @@ java {
     targetCompatibility = JavaVersion.VERSION_17
 }
 
-kotlin {
-    jvmToolchain(17)
-}
-
 repositories {
     mavenLocal()
     mavenCentral()
diff --git a/jOOQ-codegen-gradle/src/main/kotlin/org/jooq/codegen/gradle/KotlinExtensions.kt b/jOOQ-codegen-gradle/src/main/kotlin/org/jooq/codegen/gradle/KotlinExtensions.kt
deleted file mode 100644
index c31cd679cc..0000000000
--- a/jOOQ-codegen-gradle/src/main/kotlin/org/jooq/codegen/gradle/KotlinExtensions.kt
+++ /dev/null
@@ -1,15 +0,0 @@
-package org.jooq.codegen.gradle
-
-import org.jooq.meta.jaxb.Configuration
-
-fun CodegenPluginExtension.configuration(block: Configuration.() -> Unit) {
-    val c = Configuration()
-    block(c)
-    this.configuration0(c)
-}
-
-fun NamedConfiguration.configuration(block: Configuration.() -> Unit) {
-    val c = Configuration()
-    block(c)
-    this.configuration0(c)
-}
\ No newline at end of file