diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 18860373..dae319b9 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -22,7 +22,7 @@ dependencies {
     // keep this version in sync with /build.gradle.kts
     implementation("com.android.tools.build:gradle:8.1.1")
 
-    implementation("com.diffplug.spotless:spotless-plugin-gradle:6.20.0")
+    implementation("com.diffplug.spotless:spotless-plugin-gradle:6.21.0")
     implementation("net.ltgt.gradle:gradle-errorprone-plugin:3.1.0")
     implementation("net.ltgt.gradle:gradle-nullaway-plugin:1.6.0")
 }