diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index a57435f9b..9a950611e 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -62,4 +62,4 @@ setsuna = "ren.natsuyuk1.setsuna:Setsuna:0.1.0-SNAPSHOT"
 
 [plugins]
 kotlin-plugin-serialization = "org.jetbrains.kotlin.plugin.serialization:1.9.0"
-spotless = "com.diffplug.spotless:6.16.0"
+spotless = "com.diffplug.spotless:6.21.0"