diff --git a/Gemfile b/Gemfile
index b6acf69..276dacc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,4 +5,4 @@ gemspec
 
 gem 'byebug'
 gem 'mime-types', '< 2.0', platform: :ruby_18
-gem 'rubyzip', '< 1.0', platform: :ruby_18
+gem 'rubyzip', '<= 2.3.0', platform: :ruby_18