diff --git a/Gemfile b/Gemfile
index 2c6d6057..0f2460e9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 
 source 'https://rubygems.org'
 
-gem 'jekyll', '~>3.3.0'
+gem 'jekyll', '~>3.6.3'
 gem 'sass', '~>3.4.21'
 gem 'sass-css-importer', '~>1.0.0.beta.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index a14fd995..d9d310a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,40 +1,40 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    ffi (1.9.18)
+    ffi (1.11.3)
     forwardable-extended (2.6.0)
-    jekyll (3.3.1)
+    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)
       pathutil (~> 0.9)
-      rouge (~> 1.7)
+      rouge (>= 1.7, < 3)
       safe_yaml (~> 1.0)
-    jekyll-sass-converter (1.5.0)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
-    kramdown (1.13.2)
-    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 (4.0.3)
+    listen (3.2.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    pathutil (0.14.0)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (2.0.5)
-    rb-fsevent (0.9.8)
-    rb-inotify (0.9.8)
-      ffi (>= 0.5.0)
-    rouge (1.11.1)
-    safe_yaml (1.0.4)
+    public_suffix (4.0.2)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    rouge (2.2.1)
+    safe_yaml (1.0.5)
     sass (3.4.24)
     sass-css-importer (1.0.0.beta.0)
       sass (>= 3.1)
@@ -43,7 +43,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (~> 3.3.0)
+  jekyll (~> 3.6.3)
   sass (~> 3.4.21)
   sass-css-importer (~> 1.0.0.beta.0)