diff --git a/gradle.properties b/gradle.properties
index 068aafcf4e2..53354aafb70 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -23,11 +23,11 @@ testDataVersion=1067176: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=1.1-20170826.093556-820
+kotlinVersion=1.1-20170901.201358-842
 konanVersion=0.3.1
 org.gradle.jvmargs='-Dfile.encoding=UTF-8'
 
 ##
 # required for performance mesuarement tasks
-kotlinStdLibJdk8Version=1.1-20170828.150132-731
-kotlinGradlePluginVersion=1.1-20170828.151747-800
+kotlinStdLibJdk8Version=1.1-20170901.201245-751
+kotlinGradlePluginVersion=1.1-20170901.202447-820