diff --git a/Gemfile b/Gemfile
index 90dc1499..f2decc8f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -115,7 +115,7 @@ group :test do
   gem 'webmock'
   gem 'rubocop', require: false
   gem 'ruby-prof', '0.18.0'
-  gem 'shoulda-matchers', '~> 3.1'
+  gem 'shoulda-matchers', '~> 4.0'
   gem 'rails-controller-testing'
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 80126338..5e9da8c6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1144,8 +1144,8 @@ GEM
       childprocess (>= 0.5, < 2.0)
       rubyzip (~> 1.2, >= 1.2.2)
     shellany (0.0.1)
-    shoulda-matchers (3.1.2)
-      activesupport (>= 4.0.0)
+    shoulda-matchers (4.0.1)
+      activesupport (>= 4.2.0)
     sidekiq (5.2.7)
       connection_pool (~> 2.2, >= 2.2.2)
       rack (>= 1.5.0)
@@ -1292,7 +1292,7 @@ DEPENDENCIES
   sass-rails
   selenium-webdriver
   serendipitous!
-  shoulda-matchers (~> 3.1)
+  shoulda-matchers (~> 4.0)
   sidekiq
   simplecov
   slack-notifier