bugsnag-api.gemspec in bugsnag-api-2.1.0 vs bugsnag-api.gemspec in bugsnag-api-2.1.1

@@ -37,22 +37,28 @@
     spec.add_development_dependency "rubocop", "~> 0.52.1"
     spec.add_development_dependency "faker", "> 1.7.3"
   end
 
   if RUBY_VERSION < "2.0.0"
-    spec.add_development_dependency "json", "< 2.0.0"
     spec.add_development_dependency "webmock", "2.3.2"
     spec.add_development_dependency "addressable", "2.3.6"
 
     # hashdiff is used by webmock
     spec.add_development_dependency "hashdiff", "< 0.3.8"
 
     # parser is used by rubocop
     spec.add_development_dependency "parser", "< 2.5.0"
   else
-    spec.add_development_dependency "json"
     spec.add_development_dependency "webmock", "> 2.3.2"
     spec.add_development_dependency "addressable", "> 2.3.6"
+  end
+
+  if RUBY_VERSION < "2.0.0"
+    spec.add_development_dependency "json", "< 2.0.0"
+  elsif RUBY_VERSION < "2.3.0"
+    spec.add_development_dependency "json", "< 2.6.0"
+  else
+    spec.add_development_dependency "json"
   end
 
   # public_suffix is used by addressable & sawyer
   if RUBY_VERSION < "2.0.0"
     spec.add_development_dependency "public_suffix", "< 1.5.0"