diff --git a/Gemfile b/Gemfile
index ed1f961..602586a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "jekyll", "~> 3.6.0"
+gem "jekyll", "~> 3.6.3"
 # gem "github-pages", group: :jekyll_plugins
 # GitHub Pages: run `bundle update github-pages`
 
diff --git a/Gemfile.lock b/Gemfile.lock
index f51a3c8..b13015a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,12 +1,12 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.4)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
-    ffi (1.9.18)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
-    jekyll (3.6.0)
+    jekyll (3.6.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
@@ -20,27 +20,27 @@ GEM
     jekyll-feed (0.9.2)
       jekyll (~> 3.3)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.5.0)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-sitemap (1.1.1)
       jekyll (~> 3.3)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
-    kramdown (1.15.0)
-    liquid (4.0.0)
-    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)
-    pathutil (0.16.0)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
+    public_suffix (5.0.1)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
     rouge (2.2.1)
-    safe_yaml (1.0.4)
-    sass (3.5.2)
+    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)
@@ -50,7 +50,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (~> 3.6.0)
+  jekyll (~> 3.6.3)
   jekyll-feed (~> 0.6)
   jekyll-paginate
   jekyll-sitemap