diff --git a/build.gradle.kts b/build.gradle.kts
index 71ab71d643e..25c460e8ce3 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -13,7 +13,7 @@ import proguard.gradle.ProGuardTask
 buildscript {
     extra["defaultSnapshotVersion"] = "1.2-SNAPSHOT"
 
-    kotlinBootstrapFrom(BootstrapOption.TeamCity("1.2.70-dev-415", onlySuccessBootstrap = false))
+    kotlinBootstrapFrom(BootstrapOption.TeamCity("1.2.70-dev-491", onlySuccessBootstrap = false))
 
     val mirrorRepo: String? = findProperty("maven.repository.mirror")?.toString()