diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/utils/ImageBlurUtil.kt b/src/main/kotlin/kr/co/vividnext/sodalive/utils/ImageBlurUtil.kt
index 830d171..01396c2 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/utils/ImageBlurUtil.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/utils/ImageBlurUtil.kt
@@ -31,7 +31,7 @@ object ImageBlurUtil {
      * @param parallel true면 행/열 패스를 병렬 실행(ForkJoinPool). 멀티코어에서만 유효.
      * @return 블러된 새 이미지 (TYPE_INT_ARGB)
      */
-    fun blurFast(src: BufferedImage, radius: Int = 100, parallel: Boolean = true): BufferedImage {
+    fun blurFast(src: BufferedImage, radius: Int = 160, parallel: Boolean = true): BufferedImage {
         require(radius > 0) { "radius must be > 0" }
 
         // 1) 프리멀티 알파로 변환 (경계 품질↑)