diff --git a/Gemfile b/Gemfile
index 42a23e1..dc34269 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,4 +26,4 @@ end
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
-gem 'nokogiri', '~> 1.8.1'
\ No newline at end of file
+gem 'nokogiri', '~> 1.13.9'
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index cedeecb..233e044 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,15 +46,17 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minima (2.1.1)
       jekyll (~> 3.3)
     minitest (5.10.3)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.1)
+    racc (1.6.0)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -77,6 +79,7 @@ DEPENDENCIES
   jekyll-feed (~> 0.6)
   jemoji
   minima (~> 2.0)
+  nokogiri (~> 1.13.9)
   tzinfo-data
 
 BUNDLED WITH