diff --git a/lib/paperclip.rb b/lib/paperclip.rb
index a60993437..dd4bd9d01 100644
--- a/lib/paperclip.rb
+++ b/lib/paperclip.rb
@@ -64,8 +64,6 @@
   require "mime/types"
 end
 
-require 'mimemagic'
-require 'mimemagic/overlay'
 require 'logger'
 require 'cocaine'
 
diff --git a/lib/paperclip/content_type_detector.rb b/lib/paperclip/content_type_detector.rb
index b98779551..9868823f1 100644
--- a/lib/paperclip/content_type_detector.rb
+++ b/lib/paperclip/content_type_detector.rb
@@ -60,18 +60,12 @@ def possible_types
     end
 
     def type_from_file_contents
-      type_from_mime_magic || type_from_file_command
+      type_from_file_command
     rescue Errno::ENOENT => e
       Paperclip.log("Error while determining content type: #{e}")
       SENSIBLE_DEFAULT
     end
 
-    def type_from_mime_magic
-      @type_from_mime_magic ||= File.open(@filepath) do |file|
-        MimeMagic.by_magic(file).try(:type)
-      end
-    end
-
     def type_from_file_command
       @type_from_file_command ||=
         FileCommandContentTypeDetector.new(@filepath).detect
diff --git a/paperclip.gemspec b/paperclip.gemspec
index 4587fbaa1..bf2c5fe3b 100644
--- a/paperclip.gemspec
+++ b/paperclip.gemspec
@@ -28,7 +28,6 @@ Gem::Specification.new do |s|
   s.add_dependency('activesupport', '>= 4.2.0')
   s.add_dependency('cocaine', '~> 0.5.5')
   s.add_dependency('mime-types')
-  s.add_dependency('mimemagic', '~> 0.3.0')
 
   s.add_development_dependency('activerecord', '>= 4.2.0')
   s.add_development_dependency('shoulda')