diff --git a/Gemfile.lock b/Gemfile.lock
index 260c88f..ab1da31 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.4.2)
+    activesupport (5.2.4.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -9,23 +9,23 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.1.7)
     cssminify2 (2.0.1)
-    em-websocket (0.5.1)
+    em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
     extras (0.3.0)
       forwardable-extended (~> 2.5)
-    fastimage (2.1.7)
-    ffi (1.12.2)
+    fastimage (2.2.0)
+    ffi (1.13.1)
     forwardable-extended (2.6.0)
     htmlcompressor (0.4.0)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.6)
+    jekyll (3.8.7)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -49,7 +49,7 @@ GEM
       nokogiri (~> 1.8)
       pathutil (~> 0.16)
       sprockets (>= 3.3, < 4.1.beta)
-    jekyll-feed (0.13.0)
+    jekyll-feed (0.15.1)
       jekyll (>= 3.7, < 5.0)
     jekyll-minifier (0.1.10)
       cssminify2 (~> 2.0)
@@ -63,13 +63,13 @@ GEM
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-seo (0.0.2)
-    jekyll-seo-tag (2.6.1)
-      jekyll (>= 3.3, < 5.0)
+    jekyll-seo-tag (2.7.1)
+      jekyll (>= 3.8, < 5.0)
     jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.3.0)
+    json (2.3.1)
     json-minify (0.0.3)
       json (> 0)
     kramdown (1.17.0)
@@ -77,22 +77,22 @@ GEM
     liquid-tag-parser (1.9.0)
       extras (~> 0.3)
       liquid (>= 3.0, < 5.0)
-    listen (3.2.1)
+    listen (3.3.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     mini_portile2 (2.4.0)
-    minitest (5.14.0)
-    nokogiri (1.10.9)
+    minitest (5.14.2)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.4)
-    rack (2.2.2)
+    public_suffix (4.0.6)
+    rack (2.2.3)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rouge (3.18.0)
+    rouge (3.25.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -103,7 +103,7 @@ GEM
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     thread_safe (0.3.6)
-    tzinfo (1.2.7)
+    tzinfo (1.2.8)
       thread_safe (~> 0.1)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)