diff --git a/Gemfile.lock b/Gemfile.lock
index 7f9b09a4..afb92f77 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -608,6 +608,7 @@ DEPENDENCIES
   jbuilder (~> 2.5)
   jekyll (~> 4.2.0)
   jekyll-commonmark (~> 1.4.0)
+  jekyll-data
   jekyll-images
   jekyll-include-cache
   kaminari
diff --git a/app/models/site.rb b/app/models/site.rb
index c9d8d47a..63c54050 100644
--- a/app/models/site.rb
+++ b/app/models/site.rb
@@ -602,10 +602,13 @@ class Site < ApplicationRecord
     @gemfile_lock_path ||= File.join(path, 'Gemfile.lock')
   end
 
-  # Detecta si el Gemfile.lock fue modificado
+  # Detecta si el Gemfile.lock fue modificado con respecto al sitio o al
+  # Gemfile.
   def gemfile_lock_updated?
     return false unless gemfile_lock_path?
 
-    updated_at < File.mtime(gemfile_lock_path)
+    [updated_at, File.mtime(File.join(path, 'Gemfile'))].any? do |compare|
+      compare < File.mtime(gemfile_lock_path)
+    end
   end
 end