diff --git a/Gemfile.lock b/Gemfile.lock
index 2759ff5..4f9da06 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,23 +11,32 @@ GEM
     libxml-ruby (1.1.4)
     mime-types (1.16)
     mustache (0.11.2)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     nokogiri (1.4.3.1)
     pivotal-tracker (0.2.0)
       builder
       happymapper (>= 0.2.4)
       nokogiri (~> 1.4.1)
       rest-client (~> 1.5.1)
-    rack (1.2.1)
+    rack (2.2.3)
+    rack-protection (2.2.0)
+      rack
     rest-client (1.5.1)
       mime-types (>= 1.16)
+    ruby2_keywords (0.0.5)
     shotgun (0.8)
       rack (>= 1.0)
-    sinatra (1.0)
-      rack (>= 1.0)
+    sinatra (2.2.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
+      tilt (~> 2.0)
     thin (1.2.7)
       daemons (>= 1.0.9)
       eventmachine (>= 0.12.6)
       rack (>= 1.0.0)
+    tilt (2.0.10)
 
 PLATFORMS
   ruby