diff --git a/Gemfile b/Gemfile
index ff38de73..f129a3eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -76,7 +76,7 @@ group :test do
   gem "capybara-webkit", ">= 1.0.0"
   gem "database_cleaner"
   gem "launchy"
-  gem "shoulda-matchers", "~> 2.7.0"
+  gem "shoulda-matchers", "~> 4.0.0"
   gem "simplecov", require: false
   gem "timecop"
   gem "webmock"
diff --git a/Gemfile.lock b/Gemfile.lock
index 427762d9..f1e95e34 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -632,7 +632,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.7.0)
-    concurrent-ruby (1.1.3)
+    concurrent-ruby (1.1.4)
     crack (0.4.2)
       safe_yaml (~> 1.0.0)
     crass (1.0.4)
@@ -828,8 +828,8 @@ GEM
     select2-rails (3.5.9.3)
       thor (~> 0.14)
     sexp_processor (4.6.1)
-    shoulda-matchers (2.7.0)
-      activesupport (>= 3.0.0)
+    shoulda-matchers (4.0.0)
+      activesupport (>= 4.2.0)
     simple_form (3.5.0)
       actionpack (> 4, < 5.2)
       activemodel (> 4, < 5.2)
@@ -941,7 +941,7 @@ DEPENDENCIES
   rspec-rails (~> 3.0)
   sass-rails (~> 5.0.1)
   select2-rails
-  shoulda-matchers (~> 2.7.0)
+  shoulda-matchers (~> 4.0.0)
   simple_form (~> 3.5.0)
   simplecov
   spring