diff --git a/backend/build.gradle b/backend/build.gradle
index bfdec48a..81f12432 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -25,7 +25,7 @@ plugins {
     id "pl.allegro.tech.build.axion-release" version "1.18.14"
     id "com.diffplug.spotless" version "6.25.0"
     id "org.jetbrains.kotlin.jvm" version "2.0.21"
-    id "org.jetbrains.kotlin.plugin.allopen" version "2.0.20"
+    id "org.jetbrains.kotlin.plugin.allopen" version "2.0.21"
 }
 
 ext {