diff --git a/Gemfile.lock b/Gemfile.lock
index f8f9988..98fd4b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -211,7 +211,9 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.14.4)
     multipart-post (2.1.1)
-    nokogiri (1.11.1-x86_64-darwin)
+    nokogiri (1.13.3-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.13.3-x86_64-linux)
       racc (~> 1.4)
     octokit (4.20.0)
       faraday (>= 0.9)
@@ -219,7 +221,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
-    racc (1.5.2)
+    racc (1.6.0)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -255,10 +257,10 @@ GEM
 
 PLATFORMS
   x86_64-darwin-18
+  x86_64-linux
 
 DEPENDENCIES
   github-pages (~> 212)
-  jekyll (~> 3.9.0)
   jekyll-feed (~> 0.12)
   minima (~> 2.5)
   tzinfo (~> 1.2)