diff --git a/_config.yml b/_config.yml
index e6b2ed7..9518348 100644
--- a/_config.yml
+++ b/_config.yml
@@ -82,7 +82,7 @@ theme_mode:   # [light|dark]
 img_cdn:
 
 # the avatar on sidebar, support local or CORS resources
-avatar: https://media.licdn.com/dms/image/D4D03AQGZvZJbMlNIag/profile-displayphoto-shrink_100_100/0/1686459652546?e=1692230400&v=beta&t=WBnCENqZTl7XlOu5MjAj34tzxLJbXA6BF5gjb63TIg0
+avatar: https://media.licdn.com/dms/image/D4D03AQEfu2MYKmljUA/profile-displayphoto-shrink_200_200/0/1688839538841?e=1694649600&v=beta&t=Kbk9kKyP4a1IIYU04s7RizQZgG4Fw_2eMV43nIPcRs0
 
 # boolean type, the global switch for ToC in posts.
 toc: true