diff --git a/Gemfile.lock b/Gemfile.lock
index 4160af0..0cb9569 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -116,8 +116,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
-    uri (1.0.3)
-    wdm (0.2.0)
+    uri (1.0.4)
     webrick (1.9.1)
 
 PLATFORMS
@@ -132,7 +131,6 @@ DEPENDENCIES
   jekyll-redirect-from (~> 0.16.0)
   jekyll-toc (~> 0.19.0)
   premailer
-  wdm (>= 0.1.0)
 
 BUNDLED WITH
    2.5.22