diff --git a/Gemfile b/Gemfile
index 0c7a57c..55e8514 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 ################################################################################
 source "https://rubygems.org"
-gem "jekyll", "~> 3.8.0"
+gem "jekyll", "~> 3.8.4"
 gem "jekyll-paginate"
 gem "jekyll-redirect-from"
 gem "tzinfo-data", platforms: [:mingw, :mswin, :x64_mingw, :jruby]
diff --git a/Gemfile.lock b/Gemfile.lock
index 3b6ca00..8fcbc06 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,20 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.5)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
-    ffi (1.9.25-x64-mingw32)
+    ffi (1.11.1)
+    ffi (1.11.1-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.3)
+    jekyll (3.8.4)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -32,25 +34,23 @@ GEM
       jekyll (~> 3.3)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-watch (2.0.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
     kramdown (1.17.0)
-    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)
+    liquid (4.0.3)
+    listen (3.2.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    pathutil (0.16.1)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
+    public_suffix (4.0.1)
     rb-fsevent (0.10.3)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (3.2.1)
-    ruby_dep (1.5.0)
-    safe_yaml (1.0.4)
-    sass (3.5.7)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    rouge (3.12.0)
+    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)
@@ -60,17 +60,16 @@ GEM
       thread_safe (~> 0.1)
     tzinfo-data (1.2018.5)
       tzinfo (>= 1.0.0)
-    wdm (0.1.1)
 
 PLATFORMS
+  ruby
   x64-mingw32
 
 DEPENDENCIES
-  jekyll (~> 3.8.0)
+  jekyll (~> 3.8.4)
   jekyll-paginate
   jekyll-redirect-from
   tzinfo-data
-  wdm (~> 0.1.0)
 
 BUNDLED WITH
    1.16.3