diff --git a/jekyll-site/Gemfile b/jekyll-site/Gemfile
index 5202882..7d45f6b 100644
--- a/jekyll-site/Gemfile
+++ b/jekyll-site/Gemfile
@@ -9,7 +9,7 @@ ruby RUBY_VERSION
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "3.3.1"
+gem "jekyll", "3.6.3"
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima", "~> 2.0"
diff --git a/jekyll-site/Gemfile.lock b/jekyll-site/Gemfile.lock
index 1e16171..873132e 100644
--- a/jekyll-site/Gemfile.lock
+++ b/jekyll-site/Gemfile.lock
@@ -6,16 +6,16 @@ GEM
     colorator (1.1.0)
     ffi (1.15.0)
     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-feed (0.11.0)
       jekyll (~> 3.3)
@@ -24,7 +24,7 @@ GEM
     jekyll-watch (1.5.1)
       listen (~> 3.0)
     kramdown (1.17.0)
-    liquid (3.0.6)
+    liquid (4.0.3)
     listen (3.5.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -37,7 +37,7 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rouge (1.11.1)
+    rouge (2.2.1)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -49,7 +49,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (= 3.3.1)
+  jekyll (= 3.6.3)
   jekyll-feed (~> 0.6)
   minima (~> 2.0)