diff --git a/_config.yml b/_config.yml
index 7c7e8bd5fa7..00ee00c4fbd 100644
--- a/_config.yml
+++ b/_config.yml
@@ -12,7 +12,7 @@ github_repo: "https://github.com/qiubaiying/qiubaiying.github.io.git" # you code
 # Sidebar settings
 sidebar: true                           # whether or not using Sidebar.
 sidebar-about-description: "Goals determine what you going to be!"
-sidebar-avatar: /img/about-BY-gentle.jpg      # use absolute URL, seeing it's used in both `/` and `/about/`
+sidebar-avatar: /img/post-bg-ioses.jpg    # use absolute URL, seeing it's used in both `/` and `/about/`