diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 7247563..0b235cb 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -11,7 +11,7 @@ repositories {
 java { toolchain { languageVersion.set(JavaLanguageVersion.of("17")) } }
 
 dependencies {
-  implementation("com.diffplug.spotless:spotless-plugin-gradle:6.11.0")
+  implementation("com.diffplug.spotless:spotless-plugin-gradle:6.21.0")
   implementation("de.undercouch:gradle-download-task:5.4.0")
 }