flexirest.gemspec in flexirest-1.3.24 vs flexirest.gemspec in flexirest-1.3.25

@@ -40,9 +40,11 @@
     spec.add_runtime_dependency "activesupport"
   else
     spec.add_runtime_dependency "activesupport", "< 5.0.0"
   end
   # JSON is an implicit dependency of something, but JSON v2+ requires Ruby 2+
+  # Same with "tins" which is a dependency of coveralls
   if Gem::Version.new(RUBY_VERSION) < Gem::Version.new('2.0.0')
     spec.add_runtime_dependency "json", "< 2.0.0"
+    spec.add_runtime_dependency "tins", "~> 1.6.0"
   end
 end