diff --git a/build.gradle b/build.gradle
index bb59ba4..7978ffa 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     ext.min_sdk = 26
 
     // dependencies
-    ext.kotlin_version = "1.8.21"
+    ext.kotlin_version = "1.9.0"
     ext.room_version = "2.4.3"
     ext.ktx_core_version = "1.10.1"
     ext.gradle_version = "7.3.1"