diff --git a/Gemfile b/Gemfile
index 6775454..bafe3fc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem "jekyll", "3.8.6"
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima", "~> 2.5"
-gem 'jekyll-seo-tag', "~> 2.7.1"
+gem 'jekyll-seo-tag', "~> 2.8.0"
 
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
 # uncomment the line below. To upgrade, run `bundle update github-pages`.
diff --git a/Gemfile.lock b/Gemfile.lock
index 155348e..47bad1e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,22 +7,22 @@ GEM
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.8)
-    em-websocket (0.5.2)
+    concurrent-ruby (1.1.9)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
+      http_parser.rb (~> 0)
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
     eventmachine (1.2.7-x86-mingw32)
-    ffi (1.15.0)
-    ffi (1.15.0-x64-mingw32)
-    ffi (1.15.0-x86-mingw32)
+    ffi (1.15.5)
+    ffi (1.15.5-x64-mingw32)
+    ffi (1.15.5-x86-mingw32)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     html-pipeline (2.14.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    http_parser.rb (0.6.0)
+    http_parser.rb (0.8.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     jekyll (3.8.6)
@@ -43,7 +43,7 @@ GEM
     jekyll-paginate (1.1.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-seo-tag (2.7.1)
+    jekyll-seo-tag (2.8.0)
       jekyll (>= 3.8, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
@@ -53,7 +53,7 @@ GEM
       jekyll (>= 3.0, < 5.0)
     kramdown (1.17.0)
     liquid (4.0.3)
-    listen (3.5.1)
+    listen (3.7.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
@@ -74,10 +74,10 @@ GEM
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
     racc (1.5.2)
-    rb-fsevent (0.11.0)
+    rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rouge (3.26.0)
+    rouge (3.28.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -98,7 +98,7 @@ DEPENDENCIES
   jekyll (= 3.8.6)
   jekyll-feed (~> 0.15.1)
   jekyll-paginate
-  jekyll-seo-tag (~> 2.7.1)
+  jekyll-seo-tag (~> 2.8.0)
   jemoji
   minima (~> 2.5)
   tzinfo-data