diff --git a/Gemfile.lock b/Gemfile.lock
index 7734ac0..a5b4e90 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     backports (3.18.1)
     coffee-script (2.4.1)
       coffee-script-source
@@ -274,7 +274,6 @@ 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)
     zeitwerk (2.4.0)
 
 PLATFORMS
@@ -285,7 +284,6 @@ DEPENDENCIES
   github-pages
   jekyll-admin
   nokogiri (>= 1.8.5)
-  wdm (~> 0.1.0)
 
 RUBY VERSION
    ruby 2.6.6p146