diff --git a/build.gradle b/build.gradle
index cb9dcdd..b9ee044 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         versions = [:]
         versions.androidxAppcompat = '1.1.0'
         versions.androidxCore = '1.1.0'
-        versions.kotlin = '1.3.50'
+        versions.kotlin = '1.5.21'
         versions.slf4j = '1.8.0-beta4'
     }