1 files changed, 1 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index c3c90dd8c05..3eee8d47c20 100644
--- a/Gemfile
+++ b/Gemfile
@@ -86,6 +86,7 @@ gem  "asciidoctor"
 
 # Application server
 gem "unicorn", '~> 4.6.3', group: :unicorn
+gem 'unicorn-worker-killer', group: :unicorn
 
 # State machine
 gem "state_machine"