diff --git a/firefly/static/pics/dongxi.jpg b/firefly/static/pics/dongxi.jpg
deleted file mode 100644
index d90d67d..0000000
Binary files a/firefly/static/pics/dongxi.jpg and /dev/null differ
diff --git a/firefly/static/pics/firefly.jpg b/firefly/static/pics/firefly.jpg
new file mode 100644
index 0000000..9f0ae0a
Binary files /dev/null and b/firefly/static/pics/firefly.jpg differ
diff --git a/firefly/templates/base.html b/firefly/templates/base.html
index 82c7c44..739c57a 100644
--- a/firefly/templates/base.html
+++ b/firefly/templates/base.html
@@ -58,7 +58,7 @@
               div.title
                 a href='/'
                   span class='.valign-helper'
-                  img.site-logo.logo-big src="${url_for('static', filename='pics/dongxi.jpg')}" alt='pythoncn'
+                  img.site-logo.logo-big src="${url_for('static', filename='pics/firefly.jpg')}" alt='pythoncn'
               div.panel
                 - if current_user.is_authenticated()
                   Hi ${current_user.username if current_user.username else current_user.cn}