diff --git a/Gemfile b/Gemfile
index 9e8a585..d164275 100644
--- a/Gemfile
+++ b/Gemfile
@@ -54,7 +54,7 @@ gem 'spring',        group: :development
 		gem 'rb-readline'
 		gem 'jquery-datatables-rails', github: 'rweng/jquery-datatables-rails'
 		gem 'jquery-ui-rails'
-		gem 'puma'
+		gem 'passenger'
 
 
 
diff --git a/Gemfile.lock b/Gemfile.lock
index be9ba1e..4c41173 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,9 +94,10 @@ GEM
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
     orm_adapter (0.5.0)
+    passenger (5.0.6)
+      rack
+      rake (>= 0.8.1)
     pg (0.18.1)
-    puma (2.11.2)
-      rack (>= 1.1, < 2.0)
     rack (1.6.0)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -181,8 +182,8 @@ DEPENDENCIES
   jquery-rails
   jquery-ui-rails
   mysql2
+  passenger
   pg
-  puma
   rails (= 4.2.0)
   rails_12factor
   rb-readline
diff --git a/Procfile b/Procfile
index 6bbd5ce..cd10147 100644
--- a/Procfile
+++ b/Procfile
@@ -1,2 +1,2 @@
 worker: rake jobs:work
-web: bundle exec puma -t 5:5 -p $PORT -e $RAILS_ENV
\ No newline at end of file
+web: bundle exec passenger -p $PORT
\ No newline at end of file