diff --git a/build.gradle.kts b/build.gradle.kts
index 5154478..16a8b01 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,8 +4,8 @@
  */
 
 plugins {
-    kotlin("multiplatform") version "1.6.10" apply false
-    kotlin("plugin.serialization") version "1.6.10" apply false
+    kotlin("multiplatform") version "1.6.20-RC2" apply false
+    kotlin("plugin.serialization") version "1.6.20-RC2" apply false
     id("org.jetbrains.kotlinx.binary-compatibility-validator") version "0.8.0"
     `maven-publish`
     signing