1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index dec3cd1..53abf3c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -49,7 +49,7 @@ gem 'jquery-rails', '~> 2.3.0'
 gem 'bcrypt', '~> 3.1.0', git: "https://github.com/codahale/bcrypt-ruby.git"
 
 # Use unicorn as the app server
-gem 'puma'
+gem 'puma', '~> 4.3.6'
 
 gem 'test-unit', '~> 3.0'
 gem 'SyslogLogger'