diff --git a/knife-ec2.gemspec b/knife-ec2.gemspec
index a56f9f79..10d5f044 100644
--- a/knife-ec2.gemspec
+++ b/knife-ec2.gemspec
@@ -18,7 +18,6 @@ Gem::Specification.new do |s|
   s.required_ruby_version = ">= 2.3"
 
   s.add_dependency "fog-aws", ">= 1", "< 4"
-  s.add_dependency "mime-types"
   s.add_dependency "knife-windows", "~> 1.0"
 
   s.require_paths = ["lib"]