diff --git a/_posts/2015-08-14-blog-post-4.md b/_posts/2015-08-14-blog-post-4.md
index 9b40b5f..8e8639c 100644
--- a/_posts/2015-08-14-blog-post-4.md
+++ b/_posts/2015-08-14-blog-post-4.md
@@ -3,9 +3,6 @@ title: '기계공학실험 보고서'
 date: 2023-06-10
 permalink: /posts/2023/06/blog-post-4/
 tags:
-  - cool posts
-  - category1
-  - category2
 ---
 
 <span style = "font-size:14px; color: gray;"> 제가 이번 봄학기에 기계공학 실험 수업을 수강하면서 작성한 보고서입니다. </span>