diff --git a/build.gradle.kts b/build.gradle.kts
index 0ffa2d12a..85625b68a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -74,9 +74,9 @@ allprojects {
     repositories {
         mavenLocal()
         // maven(url = "https://mirrors.huaweicloud.com/repository/maven")
+        jcenter()
         maven(url = "https://dl.bintray.com/kotlin/kotlin-eap")
         maven(url = "https://kotlin.bintray.com/kotlinx")
-        jcenter()
         google()
         mavenCentral()
     }
@@ -88,6 +88,7 @@ allprojects {
         configureKotlinTestSettings()
         configureKotlinCompilerSettings()
         configureKotlinExperimentalUsages()
+        //  useIr()
 
         if (isKotlinJvmProject) {
             configureFlattenSourceSets()
@@ -97,6 +98,12 @@ allprojects {
     }
 }
 
+fun Project.useIr() {
+    kotlinCompilations?.forEach { kotlinCompilation ->
+        kotlinCompilation.kotlinOptions.freeCompilerArgs += "-Xuse-ir"
+    }
+}
+
 fun Project.configureDokka() {
     apply(plugin = "org.jetbrains.dokka")
     tasks {