diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 74c07dd..20452e0 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -202,23 +202,25 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.1)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.10-x64-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.4-x64-mingw32)
+      racc (~> 1.4)
     octokit (4.19.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (3.1.1)
+    racc (1.5.2)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -252,7 +254,6 @@ GEM
     unf_ext (0.0.7.7)
     unf_ext (0.0.7.7-x64-mingw32)
     unicode-display_width (1.7.0)
-    wdm (0.1.1)
 
 PLATFORMS
   ruby
@@ -261,7 +262,6 @@ PLATFORMS
 DEPENDENCIES
   github-pages
   tzinfo-data
-  wdm (~> 0.1.0)
 
 BUNDLED WITH
    2.1.4