diff --git a/Gemfile b/Gemfile
index 6923c3e..cee4da9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,6 @@ gem 'rake', '~> 10.4.0'
 gem 'therubyracer', platforms: :ruby
 
 # Trash
-gem 'wdm', '~> 0.1.0', :platforms => [:mswin, :mingw]
 platforms :mri_18 do
   gem 'ruby18_source_location'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 3e8f417..649288f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -145,4 +145,3 @@ DEPENDENCIES
   rouge (~> 1.8.0)
   ruby18_source_location
   therubyracer
-  wdm (~> 0.1.0)