blurhash.gemspec in blurhash-0.1.1 vs blurhash.gemspec in blurhash-0.1.2

@@ -21,10 +21,10 @@
   spec.require_paths = ['lib']
   spec.extensions    = ['ext/blurhash/extconf.rb']
 
   spec.add_dependency 'ffi', '~> 1.10.0'
 
-  spec.add_development_dependency 'bundler', '~> 1.16'
+  spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rake-compiler'
   spec.add_development_dependency 'rspec', '~> 3.0'
   spec.add_development_dependency 'rmagick', '~> 3.1.0'
 end