diff --git a/gradle.properties b/gradle.properties
index 0e41192726d..61cb5ce7b03 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
-kotlinCompilerVersion=1.2.20-dev-719
-kotlinScriptRuntimeVersion=1.2.20-dev-719
-kotlinStdLibVersion=1.2.20-dev-719
-kotlinReflectVersion=1.2.20-dev-719
+kotlinCompilerVersion=1.2.20-dev-773
+kotlinScriptRuntimeVersion=1.2.20-dev-773
+kotlinStdLibVersion=1.2.20-dev-773
+kotlinReflectVersion=1.2.20-dev-773
 konanVersion=0.4
 org.gradle.jvmargs='-Dfile.encoding=UTF-8'
 
 ##
 # required for performance mesuarement tasks
-kotlinStdLibJdk8Version=1.2.20-dev-719
-kotlinGradlePluginVersion=1.2.20-dev-719
+kotlinStdLibJdk8Version=1.2.20-dev-773
+kotlinGradlePluginVersion=1.2.20-dev-773