diff --git a/13_auth/android/build.gradle b/13_auth/android/build.gradle
index 8f03b96e71..f52b0f6f9f 100644
--- a/13_auth/android/build.gradle
+++ b/13_auth/android/build.gradle
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = "2.0.10"
+    ext.kotlin_version = "2.0.21"
     ext.android_gradle_version = "8.5.2"
 }