diff --git a/_config.butterfly.yml b/_config.butterfly.yml
index 29c815c..de4bb59 100644
--- a/_config.butterfly.yml
+++ b/_config.butterfly.yml
@@ -39,15 +39,15 @@ subtitle:
   effect: true
   loop: true
   sub:
-    - "我, 技术, 生活与值得分享的一切"
-    - "Run fast, Laugh hard, and Be kind"
-    - "从这里, 瞥见时间流过的痕迹"
+    - "在隆冬，我终于知道，我身上有一个不可战胜的夏天。"
+    - "Everything is impossible."
+    # - ""
 
 cover:
   index_enable: false
   aside_enable: false
   archives_enable: false
-  default_cover: /img/cover.png
+  default_cover: /img/cover.jpg
 
 index_post_content:
   method: 2
diff --git a/source/img/cover.jpg b/source/img/cover.jpg
new file mode 100644
index 0000000..ba09ecf
Binary files /dev/null and b/source/img/cover.jpg differ