1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index 7399208cf15..47e8e44a6d3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -256,7 +256,7 @@ end
 group :test do
   gem 'simplecov', require: false
   gem 'shoulda-matchers', '~> 2.8.0', require: false
-  gem 'email_spec'
+  gem 'email_spec', '~> 1.6.0'
   gem 'webmock', '~> 1.21.0'
   gem 'test_after_commit'
 end