diff --git a/Gemfile b/Gemfile
index 8a3f6ff..04253b4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'jekyll', '3.0.2'
+gem 'jekyll', '3.6.3'
 
 group :jekyll_plugins do
   gem 'jekyll-gist'
diff --git a/Gemfile.lock b/Gemfile.lock
index f9c1eb5..6b75a00 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,19 +4,22 @@ GEM
     addressable (2.4.0)
     asciidoctor (1.5.4)
     coderay (1.1.1)
-    colorator (0.1)
+    colorator (1.1.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.14)
-    ffi (1.9.14-x64-mingw32)
-    jekyll (3.0.2)
-      colorator (~> 0.1)
+    ffi (1.15.5)
+    ffi (1.15.5-x64-mingw32)
+    forwardable-extended (2.6.0)
+    jekyll (3.6.3)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
-      kramdown (~> 1.3)
-      liquid (~> 3.0)
+      kramdown (~> 1.14)
+      liquid (~> 4.0)
       mercenary (~> 0.3.3)
-      rouge (~> 1.7)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 3)
       safe_yaml (~> 1.0)
     jekyll-asciidoc (2.0.1)
       asciidoctor (>= 1.5.0)
@@ -24,25 +27,31 @@ GEM
     jekyll-gist (1.4.0)
       octokit (~> 4.2)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.4.0)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
-    kramdown (1.11.1)
-    liquid (3.0.6)
-    listen (3.0.8)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
+    jekyll-watch (1.5.1)
+      listen (~> 3.0)
+    kramdown (1.17.0)
+    liquid (4.0.4)
+    listen (3.8.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     multipart-post (2.0.0)
     octokit (4.3.0)
       sawyer (~> 0.7.0, >= 0.5.3)
-    rb-fsevent (0.9.7)
-    rb-inotify (0.9.7)
-      ffi (>= 0.5.0)
-    rouge (1.11.1)
-    safe_yaml (1.0.4)
-    sass (3.4.22)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    rouge (2.2.1)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     sawyer (0.7.0)
       addressable (>= 2.3.5, < 2.5)
       faraday (~> 0.8, < 0.10)
@@ -54,7 +63,7 @@ PLATFORMS
 DEPENDENCIES
   asciidoctor (~> 1.5.4)
   coderay (= 1.1.1)
-  jekyll (= 3.0.2)
+  jekyll (= 3.6.3)
   jekyll-asciidoc
   jekyll-gist
   jekyll-paginate