diff --git a/bin/templates/project/build.gradle b/bin/templates/project/build.gradle
index 9148c86b..ddf4e46d 100644
--- a/bin/templates/project/build.gradle
+++ b/bin/templates/project/build.gradle
@@ -19,7 +19,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.4.31'
+    ext.kotlin_version = '1.3.50'
     apply from: 'repositories.gradle'
     repositories repos
 
diff --git a/test/android/build.gradle b/test/android/build.gradle
index 552978d9..774f5b22 100644
--- a/test/android/build.gradle
+++ b/test/android/build.gradle
@@ -19,7 +19,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.4.31'
+    ext.kotlin_version = '1.3.50'
 
     repositories {
         google()