packetgen.gemspec in packetgen-3.1.2 vs packetgen.gemspec in packetgen-3.1.3

@@ -26,10 +26,10 @@
 
   spec.add_dependency 'interfacez', '~>1.0'
   spec.add_dependency 'pcaprub', '~>0.12.4'
   spec.add_dependency 'rasn1', '~>0.5', '>= 0.6.6'
 
-  spec.add_development_dependency 'bundler', '~> 1.17.3'
+  spec.add_development_dependency 'bundler', '>=1.7', '<3'
   spec.add_development_dependency 'rake', '~> 12.3'
   spec.add_development_dependency 'rspec', '~> 3.7'
   spec.add_development_dependency 'simplecov', '~> 0.16'
   spec.add_development_dependency 'yard', '~> 0.9'
 end