diff --git a/.coveralls.yml b/.coveralls.yml
new file mode 100644
index 0000000..9160059
--- /dev/null
+++ b/.coveralls.yml
@@ -0,0 +1 @@
+service_name: travis-ci
diff --git a/iiif_manifest.gemspec b/iiif_manifest.gemspec
index cbf47e6..f1c917c 100644
--- a/iiif_manifest.gemspec
+++ b/iiif_manifest.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'activesupport', '>= 4'
 
   spec.add_development_dependency 'bixby', '~> 1.0'
-  spec.add_development_dependency 'bundler', '~> 2.0'
+  spec.add_development_dependency 'coveralls'
   spec.add_development_dependency 'pry-byebug'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index ef4dcff..3689dda 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,6 @@
+require 'coveralls'
+Coveralls.wear!
+
 $LOAD_PATH.unshift File.expand_path('../lib', __dir__)
 require 'iiif_manifest'
 require 'pry'