diff --git a/build.gradle b/build.gradle
index 27640a52..8c74cf07 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
     ext {
-        KOTLIN_VERSION = "1.7.20"
+        KOTLIN_VERSION = "1.7.21"
         KETHEREUM_VERSION = "0.85.7"
     }