diff --git a/Gemfile b/Gemfile
index 205d605..07e5dc0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,12 +3,13 @@ source 'https://rubygems.org'
 gem 'github-pages', group: :jekyll_plugins
 
 group :jekyll_plugins do
+  gem 'jekyll-feed'
   gem 'jekyll-sitemap'
 end
 
-group :scripts do 
-  gem 'mgem' 
-  gem 'git' 
+group :scripts do
+  gem 'mgem'
+  gem 'git'
 
   # API Docs
   gem 'yard-mruby'
diff --git a/Gemfile.lock b/Gemfile.lock
index b60c426..2b132ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.3.3)
+    activesupport (6.0.3.5)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -17,8 +17,8 @@ GEM
     colorator (1.1.0)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
-    concurrent-ruby (1.1.7)
-    dnsruby (1.61.4)
+    concurrent-ruby (1.1.8)
+    dnsruby (1.61.5)
       simpleidn (~> 0.1)
     em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
@@ -27,21 +27,24 @@ GEM
       ffi (>= 1.3.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
-    faraday (1.0.1)
+    faraday (1.3.0)
+      faraday-net_http (~> 1.0)
       multipart-post (>= 1.2, < 3)
-    ffi (1.13.1)
+      ruby2_keywords
+    faraday-net_http (1.0.1)
+    ffi (1.14.2)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
-    git (1.7.0)
+    git (1.8.1)
       rchardet (~> 1.8)
-    github-pages (208)
-      github-pages-health-check (= 1.16.1)
+    github-pages (212)
+      github-pages-health-check (= 1.17.0)
       jekyll (= 3.9.0)
       jekyll-avatar (= 0.7.0)
       jekyll-coffeescript (= 1.1.1)
       jekyll-commonmark-ghpages (= 0.1.6)
       jekyll-default-layout (= 0.1.4)
-      jekyll-feed (= 0.15.0)
+      jekyll-feed (= 0.15.1)
       jekyll-gist (= 1.5.0)
       jekyll-github-metadata (= 2.13.0)
       jekyll-mentions (= 1.6.0)
@@ -52,7 +55,7 @@ GEM
       jekyll-relative-links (= 0.6.1)
       jekyll-remote-theme (= 0.4.2)
       jekyll-sass-converter (= 1.5.2)
-      jekyll-seo-tag (= 2.6.1)
+      jekyll-seo-tag (= 2.7.1)
       jekyll-sitemap (= 1.4.0)
       jekyll-swiss (= 1.0.0)
       jekyll-theme-architect (= 0.1.1)
@@ -76,13 +79,13 @@ GEM
       mercenary (~> 0.3)
       minima (= 2.5.1)
       nokogiri (>= 1.10.4, < 2.0)
-      rouge (= 3.23.0)
+      rouge (= 3.26.0)
       terminal-table (~> 1.4)
-    github-pages-health-check (1.16.1)
+    github-pages-health-check (1.17.0)
       addressable (~> 2.3)
       dnsruby (~> 1.60)
       octokit (~> 4.0)
-      public_suffix (~> 3.0)
+      public_suffix (>= 2.0.2, < 5.0)
       typhoeus (~> 1.3)
     html-pipeline (2.14.0)
       activesupport (>= 2)
@@ -117,7 +120,7 @@ GEM
       rouge (>= 2.0, < 4.0)
     jekyll-default-layout (0.1.4)
       jekyll (~> 3.0)
-    jekyll-feed (0.15.0)
+    jekyll-feed (0.15.1)
       jekyll (>= 3.7, < 5.0)
     jekyll-gist (1.5.0)
       octokit (~> 4.2)
@@ -143,8 +146,8 @@ GEM
       rubyzip (>= 1.3.0, < 3.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-seo-tag (2.6.1)
-      jekyll (>= 3.3, < 5.0)
+    jekyll-seo-tag (2.7.1)
+      jekyll (>= 3.8, < 5.0)
     jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
     jekyll-swiss (1.0.0)
@@ -201,34 +204,39 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.2.1)
+    listen (3.4.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     mgem (0.3.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
-    minitest (5.14.2)
+    minitest (5.14.4)
     multipart-post (2.1.1)
-    nokogiri (~> 1.11.0)
-      mini_portile2 (~> 2.4.0)
-    octokit (4.18.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.1-x86_64-darwin)
+      racc (~> 1.4)
+    octokit (4.20.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
+    racc (1.5.2)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rchardet (1.8.0)
     rexml (3.2.4)
-    rouge (3.23.0)
-    ruby-enum (0.8.0)
+    rouge (3.26.0)
+    ruby-enum (0.9.0)
       i18n
+    ruby2_keywords (0.0.4)
     rubyzip (2.3.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -239,37 +247,39 @@ GEM
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    simpleidn (0.1.1)
+    simpleidn (0.2.1)
       unf (~> 0.1.4)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.7)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
-    yard (0.9.25)
+    yard (0.9.26)
     yard-coderay (0.1.0)
       coderay
       yard
     yard-mruby (0.3.0)
       yard (~> 0.9.0)
-    zeitwerk (2.4.0)
+    zeitwerk (2.4.2)
 
 PLATFORMS
   ruby
+  x86_64-darwin-19
 
 DEPENDENCIES
   git
   github-pages
+  jekyll-feed
   jekyll-sitemap
   mgem
   yard-coderay
   yard-mruby
 
 BUNDLED WITH
-   2.1.4
+   2.2.0
diff --git a/_config.yml b/_config.yml
index 9f2ea7d..5957e95 100644
--- a/_config.yml
+++ b/_config.yml
@@ -12,6 +12,7 @@ url: https://mruby.org
 repository: https://github.com/mruby/mruby.github.io
 include: _index.html
 plugins:
+  - jekyll-feed
   - jekyll-sitemap
 exclude:
   - CODEOWNERS
diff --git a/_includes/footer.html b/_includes/footer.html
index 1d11e75..0bbe72f 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -2,4 +2,9 @@
         <div class="container">
           <a href="https://github.com/h2so5/mruby-logo">mruby-logo</a> provided by <a href="https://github.com/h2so5">h2so5</a>
         </div>
+        <div>
+          <a href="/rss.xml">
+            <img src="/images/icons/rss-feed.png" alt="RSS feed" title="RSS feed" width="25" height="25">
+          </a>
+        </div>
       </footer>
diff --git a/images/icons/rss-feed.png b/images/icons/rss-feed.png
new file mode 100644
index 0000000..830c66b
Binary files /dev/null and b/images/icons/rss-feed.png differ
diff --git a/rss.xml b/rss.xml
new file mode 100644
index 0000000..53f7989
--- /dev/null
+++ b/rss.xml
@@ -0,0 +1,31 @@
+---
+layout: null
+---
+<?xml version="1.0" encoding="UTF-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+    <channel>
+        <title>{{ site.title | xml_escape }}</title>
+        <description>{{ site.description | xml_escape }}</description>
+        <link>{{ site.url }}{{ site.baseurl }}/</link>
+        <atom:link href="{{ "/rss.xml" | prepend: site.baseurl | prepend: site.url }}" rel="self" type="application/rss+xml"/>
+        <pubDate>{{ site.time | date_to_rfc822 }}</pubDate>
+        <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
+        <generator>Jekyll v{{ jekyll.version }}</generator>
+        {% for post in site.posts %}
+        <item>
+            <title>{{ post.title | xml_escape }}</title>
+            <author></author>
+            <description>{{ post.content | xml_escape }}</description>
+            <pubDate>{{ post.date | date_to_rfc822 }}</pubDate>
+            <link>{{ post.url | prepend: site.baseurl | prepend: site.url }}</link>
+            <guid isPermaLink="true">{{ post.url | prepend: site.baseurl | prepend: site.url }}</guid>
+            {% for tag in post.tags %}
+            <category>{{ tag | xml_escape }}</category>
+            {% endfor %}
+            {% for cat in post.categories %}
+            <category>{{ cat | xml_escape }}</category>
+            {% endfor %}
+        </item>
+        {% endfor %}
+    </channel>
+</rss>
\ No newline at end of file