diff --git a/app/build.gradle b/app/build.gradle
index d947a03..a325ccc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -38,7 +38,7 @@ dependencies {
 }
 
 buildscript {
-    ext.kotlin_version = '1.2.21'
+    ext.kotlin_version = '1.2.31'
     ext.android_support_version = '27.1.0'
     repositories {
         mavenCentral()