ruby-kafka.gemspec in ruby-kafka-0.7.6 vs ruby-kafka.gemspec in ruby-kafka-0.7.7

@@ -37,9 +37,10 @@
   spec.add_development_dependency "docker-api"
   spec.add_development_dependency "rspec-benchmark"
   spec.add_development_dependency "activesupport"
   spec.add_development_dependency "snappy"
   spec.add_development_dependency "extlz4"
+  spec.add_development_dependency "zstd-ruby"
   spec.add_development_dependency "colored"
   spec.add_development_dependency "rspec_junit_formatter", "0.2.2"
   spec.add_development_dependency "dogstatsd-ruby", ">= 3.0.0", "< 5.0.0"
   spec.add_development_dependency "statsd-ruby"
   spec.add_development_dependency "ruby-prof"