fluent-plugin-twitter.gemspec in fluent-plugin-twitter-0.5.3 vs fluent-plugin-twitter.gemspec in fluent-plugin-twitter-0.5.4

@@ -1,11 +1,11 @@
 # -*- encoding: utf-8 -*-
 $:.push File.expand_path("../lib", __FILE__)
 
 Gem::Specification.new do |s|
   s.name        = "fluent-plugin-twitter"
-  s.version     = "0.5.3"
+  s.version     = "0.5.4"
   s.authors     = ["Kentaro Yoshida"]
   s.email       = ["[e-mail]"]
   s.homepage    = "https://github.com/y-ken/fluent-plugin-twitter"
   s.summary     = %q{Fluentd Input/Output plugin to collect/process tweets with Twitter Streaming API.}
   s.license     = "Apache-2.0"
@@ -16,10 +16,16 @@
   s.require_paths = ["lib"]
 
   s.add_development_dependency "rake"
   s.add_development_dependency "test-unit", ">= 3.1.0"
   s.add_development_dependency "appraisal"
-  s.add_runtime_dependency "fluentd", ">= 0.10.46"
+
+  # Since Fluentd v0.14 requires ruby 2.1 or later.
+  if defined?(RUBY_VERSION) && RUBY_VERSION < "2.1"
+    s.add_runtime_dependency "fluentd", "< 0.14"
+  else
+    s.add_runtime_dependency "fluentd", ">= 0.10.46"
+  end
   s.add_runtime_dependency "twitter", ">= 5.0.0"
   s.add_runtime_dependency "tweetstream", ">= 2.6.1"
   s.add_runtime_dependency "string-scrub", ">= 0.0.3" if RUBY_VERSION.to_f < 2.1
 end