diff --git a/build.gradle b/build.gradle
index 32d9b34..b9a291c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
 
-    ext.kotlin_version = '1.4.31'
+    ext.kotlin_version = '1.5.20'
     dependencies {
         classpath 'com.android.tools.build:gradle:4.1.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"