diff --git a/gradle.properties b/gradle.properties
index 128ff09fad6..325421ecbf0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -20,7 +20,7 @@ buildKotlinCompilerRepo=http://dl.bintray.com/kotlin/kotlin-dev
 remoteRoot=konan_tests
 kotlinCompilerRepo=http://dl.bintray.com/kotlin/kotlin-dev
 kotlinVersion=1.3.0-rc-46
-testKotlinVersion=1.3.0-rc-43
+testKotlinVersion=1.3.0-rc-52
 konanVersion=0.9.2
 org.gradle.jvmargs='-Dfile.encoding=UTF-8'
 org.gradle.workers.max=4