diff --git a/README.md b/README.md
index 6c9ae84..bdca615 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,6 @@ Please follow the documentation [on the website](https://ourai.github.io/lime/).
 
 ## License
 
-[MIT](https://opensource.org/licenses/MIT)
+Source code is released under the [MIT](./LICENSE) license, and documents are shared under the [CC BY-NC-SA 4.0](./LICENSE-docs) license.
 
 Copyright (c) 2015-present, Ourai Lin
diff --git a/src/jekyll/_includes/ksio/components/copyright.html b/src/jekyll/_includes/ksio/components/copyright.html
index 6080aa3..41ce70d 100644
--- a/src/jekyll/_includes/ksio/components/copyright.html
+++ b/src/jekyll/_includes/ksio/components/copyright.html
@@ -1,4 +1,4 @@
-{% assign _inc_cr = site.ksio.copyright %}{% if _inc_cr %}{% assign _inc_current = site.time | date: "%Y" %}{% assign _inc_start = _inc_cr.period.start | default: _inc_current %}{% assign _inc_site_url = "/" | prepend: site.baseurl | prepend: site.url %}{% assign _inc_url = _inc_cr.owner.url | default: _inc_site_url %}{% if _inc_url contains "http" %}
+{% assign _inc_cr = site.ksio.copyright %}{% if _inc_cr %}{% assign _inc_current = site.time | date: "%Y" | plus: 0 %}{% assign _inc_start = _inc_cr.period.start | default: _inc_current | plus: 0 %}{% assign _inc_site_url = "/" | prepend: site.baseurl | prepend: site.url %}{% assign _inc_url = _inc_cr.owner.url | default: _inc_site_url %}{% if _inc_url contains "http" %}
 {% assign _inc_external = true %}{% if include.utm %}
     {% assign _inc_url = _inc_url | append: "?" | append: include.utm %}
   {% endif %}