diff --git a/gradle.properties b/gradle.properties
index 98790347d23..548e4a6f3a0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -17,7 +17,7 @@ kotlin.build.useIR=true
 #maven.repository.mirror=http://repository.jetbrains.com/remote-repos/
 #bootstrap.kotlin.repo=https://maven.pkg.jetbrains.space/kotlin/p/kotlin/bootstrap
 #bootstrap.kotlin.version=1.1.50-dev-1451
-bootstrap.kotlin.default.version=1.5.30-dev-2862
+bootstrap.kotlin.default.version=1.6.0-dev-328
 
 kotlin.build.publishing.attempts=20
 #signingRequired=true