diff --git a/common/static/img/logo_square.jpg b/common/static/img/logo_square.jpg
new file mode 100644
index 00000000..37ed7679
Binary files /dev/null and b/common/static/img/logo_square.jpg differ
diff --git a/users/templates/users/login.html b/users/templates/users/login.html
index 55133fc0..eb87b11d 100644
--- a/users/templates/users/login.html
+++ b/users/templates/users/login.html
@@ -9,7 +9,7 @@
     <meta property="og:title" content="{% trans 'Nicedb - 登录' %}">
     <meta property="og:type" content="website">
     <meta property="og:url" content="{{ request.build_absolute_uri }}">
-    <meta property="og:image" content="{{ request.scheme }}://{{ request.get_host }}{% static 'img/logo_square.svg' %}">
+    <meta property="og:image" content="{{ request.scheme }}://{{ request.get_host }}{% static 'img/logo_square.jpg' %}">
     <link rel="stylesheet" href="{% static 'lib/css/milligram.css' %}">
     <link rel="stylesheet" href="{% static 'css/boofilsic_edit.css' %}">
     <link rel="stylesheet" href="{% static 'css/boofilsic_box.css' %}">