diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanBackendContext.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanBackendContext.kt
index 998c0e15de6..1d65254e158 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanBackendContext.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanBackendContext.kt
@@ -29,7 +29,6 @@ import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.IrFile
-import org.jetbrains.kotlin.ir.util.getCompilerMessageLocation
 import org.jetbrains.kotlin.name.Name
 
 abstract internal class KonanBackendContext(val config: KonanConfig) : CommonBackendContext {
diff --git a/gradle.properties b/gradle.properties
index e188dffc6cf..6597e10cb4a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -23,14 +23,14 @@ testDataVersion=1226829:id
 kotlinCompilerRepo=https://dl.bintray.com/jetbrains/kotlin-native-dependencies
 #kotlinCompilerRepo=http://oss.sonatype.org/content/repositories/snapshots
 #kotlinCompilerRepo=http://dl.bintray.com/kotlin/kotlin-dev
-kotlinVersion=1.2-20171110.225330-21
-kotlinScriptRuntimeVersion=1.2-20171110.225348-21
-kotlinStdLibVersion=1.2-20171110.225351-21
-kotlinReflectVersion=1.2-20171110.225343-21
+kotlinVersion=1.2-20171124.204021-51
+kotlinScriptRuntimeVersion=1.2-20171124.204038-51
+kotlinStdLibVersion=1.2-20171124.204041-51
+kotlinReflectVersion=1.2-20171124.204033-51
 konanVersion=0.4
 org.gradle.jvmargs='-Dfile.encoding=UTF-8'
 
 ##
 # required for performance mesuarement tasks
-kotlinStdLibJdk8Version=1.2-20171110.225357-21
-kotlinGradlePluginVersion=1.2-20171110.225340-21
+kotlinStdLibJdk8Version=1.2-20171124.204046-51
+kotlinGradlePluginVersion=1.2-20171124.204030-51