diff --git a/flutter/example/android/build.gradle b/flutter/example/android/build.gradle
index 81a8ec98ee..147ece678d 100644
--- a/flutter/example/android/build.gradle
+++ b/flutter/example/android/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.5.31'
+    ext.kotlin_version = '1.6.21'
     repositories {
         google()
         mavenCentral()
diff --git a/min_version_test/android/build.gradle b/min_version_test/android/build.gradle
index df7a3ddd8e..9fba9cc6b1 100644
--- a/min_version_test/android/build.gradle
+++ b/min_version_test/android/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.5.31'
+    ext.kotlin_version = '1.6.21'
     repositories {
         google()
         mavenCentral()