diff --git a/build.gradle b/build.gradle
index 1e2af8d..edaee6c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.8.10'
+    ext.kotlin_version = '1.9.0'
     if (!project.hasProperty('version') || project.version.equals('unspecified')) {
         project.version = '+'
     }