diff --git a/Gemfile.lock b/Gemfile.lock
index 0d79919..d522244 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -239,6 +239,9 @@
     omniauth-shibboleth (1.2.1)
       omniauth (>= 1.0.0)
     orm_adapter (0.5.0)
+    passenger (5.0.30)
+      rack
+      rake (>= 0.8.1)
     pkg-config (1.1.7)
     polyamorous (1.3.1)
       activerecord (>= 3.0)
@@ -386,6 +389,7 @@
   mysql2 (~> 0.3.18)
   omniauth
   omniauth-shibboleth
+  passenger
   protected_attributes
   rack-test
   rails (= 4.2.0)