diff --git a/site/Gemfile.lock b/site/Gemfile.lock
index 6f3ea5069..b36ce1e4f 100644
--- a/site/Gemfile.lock
+++ b/site/Gemfile.lock
@@ -205,7 +205,7 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.11.3)
     multipart-post (2.1.1)
-    nokogiri (1.10.3)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     octokit (4.14.0)
       sawyer (~> 0.8.0, >= 0.5.3)
@@ -244,6 +244,7 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
+  jekyll-seo-tag
   redcarpet
 
 BUNDLED WITH