diff --git a/build.gradle b/build.gradle
index 6c50d00..4956d95 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlinVersion = '1.2.21'
+    ext.kotlinVersion = '1.3.31'
     repositories {
         google()
         jcenter()