diff --git a/Gemfile b/Gemfile
index 614cd4e..81ab570 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'jekyll', '3.7.2'
+gem 'jekyll', '3.7.4'
 
 group :jekyll_plugins do
   gem 'jekyll-sitemap', '1.2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index c92164e..3ff3623 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,20 +1,20 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.0.5)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.1.10)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
-    eventmachine (1.2.5)
-    ffi (1.9.18)
+      http_parser.rb (~> 0)
+    eventmachine (1.2.7)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
-    http_parser.rb (0.6.0)
-    i18n (0.9.3)
+    http_parser.rb (0.8.0)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jekyll (3.7.2)
+    jekyll (3.7.4)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -36,26 +36,24 @@ GEM
       jekyll (~> 3.3)
     jekyll-sitemap (1.2.0)
       jekyll (~> 3.3)
-    jekyll-watch (2.0.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (1.16.2)
-    liquid (4.0.0)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    kramdown (1.17.0)
+    liquid (4.0.3)
+    listen (3.7.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     mini_magick (4.8.0)
-    pathutil (0.16.1)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.1)
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (3.1.1)
-    ruby_dep (1.5.0)
-    safe_yaml (1.0.4)
-    sass (3.5.5)
+    public_suffix (4.0.7)
+    rb-fsevent (0.11.1)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    rouge (3.28.0)
+    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)
@@ -65,7 +63,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (= 3.7.2)
+  jekyll (= 3.7.4)
   jekyll-resize (= 0.0.3)
   jekyll-seo-tag (= 2.4.0)
   jekyll-sitemap (= 1.2.0)