diff --git a/gradle.properties b/gradle.properties
index 6dbd64e..407f927 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 kotlin.code.style=official
-kotlin_version=1.6.10
+kotlin_version=1.6.21
 
 telegram_bot_api_version=0.38.12
 ktor_version=1.6.8