diff --git a/Gemfile b/Gemfile
index 8af2673..418a85e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,6 +21,7 @@ gem "minima", "~> 2.0"
 # If you have any plugins, put them here!
 group :jekyll_plugins do
    gem "jekyll-feed", "~> 0.6"
+   gem "jekyll-sitemap", "~> 1.1"
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/Gemfile.lock b/Gemfile.lock
index d15e683..7c82bfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,6 +21,8 @@ GEM
       jekyll (~> 3.3)
     jekyll-sass-converter (1.5.0)
       sass (~> 3.4)
+    jekyll-sitemap (1.1.1)
+      jekyll (~> 3.3)
     jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
     kramdown (1.13.2)
@@ -47,11 +49,12 @@ PLATFORMS
 DEPENDENCIES
   jekyll (= 3.4.3)
   jekyll-feed (~> 0.6)
+  jekyll-sitemap (~> 1.1)
   minima (~> 2.0)
   tzinfo-data
 
 RUBY VERSION
-   ruby 2.4.0p0
+   ruby 2.1.9p490
 
 BUNDLED WITH
-   1.14.2
+   1.15.1
diff --git a/_config.yml b/_config.yml
index 2b5e17c..99f9c99 100644
--- a/_config.yml
+++ b/_config.yml
@@ -30,6 +30,7 @@ disqus:
 theme: minima
 gems:
   - jekyll-feed
+  - jekyll-sitemap
 exclude:
   - Gemfile
   - Gemfile.lock