remove_bg.gemspec in remove_bg-1.3.0 vs remove_bg.gemspec in remove_bg-1.4.0

@@ -22,15 +22,17 @@
   spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
   spec.add_dependency "faraday", ">= 0.15", "< 2"
+  spec.add_dependency "image_processing", ">= 1.9", "< 2"
+  spec.add_dependency "rubyzip", ">= 2.0", "< 3"
 
   spec.add_development_dependency "appraisal"
   spec.add_development_dependency "bundler", "~> 1.17"
   spec.add_development_dependency "dotenv"
   spec.add_development_dependency "pry"
-  spec.add_development_dependency "rake", "~> 12.0"
+  spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec_junit_formatter"
   spec.add_development_dependency "rspec-with_params"
   spec.add_development_dependency "rspec", "~> 3.8"
   spec.add_development_dependency "vcr"
   spec.add_development_dependency "webmock"