diff --git a/Gemfile.lock b/Gemfile.lock
index bd80dea2a5..347f3b3c2f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -217,10 +217,10 @@ GEM
       jekyll-seo-tag (~> 2.1)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    nokogiri (1.11.3)
+    nokogiri (1.11.4)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
-    nokogiri (1.11.3-x64-mingw32)
+    nokogiri (1.11.4-x64-mingw32)
       racc (~> 1.4)
     octokit (4.21.0)
       faraday (>= 0.9)
@@ -262,7 +262,6 @@ 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
@@ -274,7 +273,6 @@ DEPENDENCIES
   jekyll-include-cache
   minima (~> 2.0)
   tzinfo-data
-  wdm (~> 0.1.0)
 
 BUNDLED WITH
    2.0.2