diff --git a/android/build.gradle b/android/build.gradle
index bc9895c..c2a9efc 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -2,7 +2,7 @@ group 'dev.steenbakker.flutter_ble_peripheral'
 version '1.0-SNAPSHOT'
 
 buildscript {
-    ext.kotlin_version = '1.9.10'
+    ext.kotlin_version = '1.9.20'
     repositories {
         google()
         mavenCentral()