diff --git a/Gemfile.lock b/Gemfile.lock
index 7734ac0..a0a5c66 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -267,14 +267,13 @@ GEM
     tilt (2.0.10)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
     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