diff --git a/Gemfile.lock b/Gemfile.lock
index d81e476e..5c6865ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,7 +71,9 @@ GEM
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)
-    rack-protection (1.2.0)
+    rack-mobile-detect (0.4.0)
+      rack
+    rack-protection (1.3.2)
       rack
     rack-ssl (1.3.2)
       rack
@@ -128,6 +130,8 @@ DEPENDENCIES
   localeapp-handlebars_i18n
   puma
   rack-cache
+  rack-mobile-detect
+  rack-protection (~> 1.3)
   rack-ssl (~> 1.3)
   rake (~> 0.9.2)
   rake-pipeline!