diff --git a/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-jvm.gradle.kts b/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-jvm.gradle.kts
index af515e23..7eebea99 100644
--- a/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-jvm.gradle.kts
+++ b/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-jvm.gradle.kts
@@ -20,9 +20,7 @@ dependencies {
 }
 
 kotlin {
-  jvmToolchain {
-    languageVersion.set(JavaLanguageVersion.of(11))
-  }
+  jvmToolchain(11)
 }
 
 java {
diff --git a/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-mpp.gradle.kts b/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-mpp.gradle.kts
index 31f00f17..b3105e69 100644
--- a/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-mpp.gradle.kts
+++ b/buildSrc/src/main/kotlin/buildsrc/convention/kotlin-mpp.gradle.kts
@@ -20,6 +20,7 @@ kotlin {
     nodejs()
   }
 
+  jvmToolchain(11)
   jvm {
     withJava()
   }