1 files changed, 13 insertions, 10 deletions
diff --git a/buildSrc/src/main/kotlin/org/jetbrains/conventions/kotlin-jvm.gradle.kts b/buildSrc/src/main/kotlin/org/jetbrains/conventions/kotlin-jvm.gradle.kts
index bd33df22..c40ce57c 100644
--- a/buildSrc/src/main/kotlin/org/jetbrains/conventions/kotlin-jvm.gradle.kts
+++ b/buildSrc/src/main/kotlin/org/jetbrains/conventions/kotlin-jvm.gradle.kts
@@ -1,6 +1,7 @@
 package org.jetbrains.conventions
 
 import org.jetbrains.configureDokkaVersion
+import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
@@ -14,16 +15,18 @@ configureDokkaVersion()
 val language_version: String by project
 
 tasks.withType<KotlinCompile>().configureEach {
-    kotlinOptions {
-        freeCompilerArgs += listOf(
-            "-opt-in=kotlin.RequiresOptIn",
-            "-Xjsr305=strict",
-            "-Xskip-metadata-version-check",
-            // need 1.4 support, otherwise there might be problems with Gradle 6.x (it's bundling Kotlin 1.4)
-            "-Xsuppress-version-warnings"
+    compilerOptions {
+        freeCompilerArgs.addAll(
+            listOf(
+                "-opt-in=kotlin.RequiresOptIn",
+                "-Xjsr305=strict",
+                "-Xskip-metadata-version-check",
+                // need 1.4 support, otherwise there might be problems with Gradle 6.x (it's bundling Kotlin 1.4)
+                "-Xsuppress-version-warnings"
+            )
         )
-        allWarningsAsErrors = true
-        languageVersion = language_version
-        apiVersion = language_version
+        allWarningsAsErrors.set(true)
+        languageVersion.set(KotlinVersion.fromVersion(language_version))
+        apiVersion.set(KotlinVersion.fromVersion(language_version))
     }
 }