diff --git a/build.gradle b/build.gradle
index e5e913cb2..ced061342 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,9 +2,9 @@
 
 buildscript {
     ext {
-        kotlin_version = '1.6.20'
+        kotlin_version = '1.6.21'
         navigation_version = '2.4.2'
-        mdc_version = '1.6.0-beta01'
+        mdc_version = '1.6.0-rc01'
         preference_version = '1.2.0'
         appcompat_version = '1.4.1'
     }