diff --git a/Gemfile b/Gemfile
index 6f690dc..bba314b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,10 +3,4 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in saxlsx.gemspec
 gemspec
 
-gem 'caxlsx'
-gem 'rubyXL'
-gem 'simple_xlsx_reader'
-gem 'creek'
-gem 'oxcelix'
-gem 'roo'
-gem 'dullard'
+gem "rubyzip", "~> 2.0"
diff --git a/saxlsx.gemspec b/saxlsx.gemspec
index 0b628cd..a769754 100644
--- a/saxlsx.gemspec
+++ b/saxlsx.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.5.0'
 
-  spec.add_dependency 'rubyzip', '~> 1.0'
+  spec.add_dependency 'rubyzip', '>= 1.0'
   spec.add_dependency 'ox', '~> 2.1'
 
   spec.add_development_dependency 'bundler', ">= 1.5"
diff --git a/spec/benchmarks.rb b/spec/benchmarks.rb
index abe07f7..649e419 100644
--- a/spec/benchmarks.rb
+++ b/spec/benchmarks.rb
@@ -1,13 +1,18 @@
 # frozen_string_literal: true
 require 'benchmark'
-require 'axlsx'
-require 'saxlsx'
-require 'rubyXL'
-require 'simple_xlsx_reader'
-require 'creek'
-require 'oxcelix'
-require 'roo'
-require 'dullard'
+require 'bundler/inline'
+
+gemfile do
+  source 'https://rubygems.org'
+  gem 'caxlsx'
+  gem 'rubyXL'
+  gem 'simple_xlsx_reader'
+  gem 'creek'
+  gem 'oxcelix'
+  gem 'roo'
+  gem 'dullard'
+  gem "saxlsx", path: File.expand_path("../..", __FILE__ )
+end
 
 module Saxlsx
   class Benchmarks