diff --git a/Gemfile.lock b/Gemfile.lock
index fa60bbc..0ae02a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -191,21 +191,23 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.5.0)
     minima (2.1.1)
       jekyll (~> 3.3)
     minitest (5.11.3)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.1-x64-mingw32)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.1-x64-mingw32)
+      racc (~> 1.4)
     octokit (4.8.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (2.0.5)
+    racc (1.5.2)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -232,7 +234,6 @@ GEM
     tzinfo-data (1.2021.1)
       tzinfo (>= 1.0.0)
     unicode-display_width (1.3.0)
-    wdm (0.1.1)
 
 PLATFORMS
   ruby
@@ -241,7 +242,6 @@ PLATFORMS
 DEPENDENCIES
   github-pages
   tzinfo-data
-  wdm (>= 0.1.0)
 
 BUNDLED WITH
    2.2.14