diff --git a/build.gradle b/build.gradle
index b433efa..cd23d58 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
     ext {
-        KOTLIN_VERSION = "1.4.0"
+        KOTLIN_VERSION = "1.4.20"
     }
 
     repositories {