diff --git a/lang/en-US/index.yaml b/lang/en-US/index.yaml
index e91b6b4..482d50a 100644
--- a/lang/en-US/index.yaml
+++ b/lang/en-US/index.yaml
@@ -151,7 +151,7 @@ recruit:
 
 footer:
   mail: 'E-mail: contact@dongyue.io'
-  copyright: Copyright © 2011-2018 Dongyue Studio
+  copyright: Copyright © 2011-2021 Dongyue Studio
   blog: Blog
   zhihu: Zhihu
   github: GitHub
diff --git a/lang/zh-CN/index.yaml b/lang/zh-CN/index.yaml
index ebb36c3..25ea1af 100644
--- a/lang/zh-CN/index.yaml
+++ b/lang/zh-CN/index.yaml
@@ -151,7 +151,7 @@ recruit:
 
 footer:
   mail: '电子邮箱：contact@dongyue.io'
-  copyright: Copyright © 2011-2018 东岳网络工作室
+  copyright: Copyright © 2011-2021 东岳网络工作室
   blog: 博客
   zhihu: 知乎
   github: GitHub