diff --git a/Gemfile.lock b/Gemfile.lock
index e08ee1c..95b9814 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,13 +29,15 @@ GEM
     json (1.7.5)
     method_source (0.8.1)
     multi_json (1.3.6)
+    mustermann (3.0.0)
+      ruby2_keywords (~> 0.0.1)
     plist (3.1.0)
     pry (0.9.10)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.3.1)
-    rack (1.4.1)
-    rack-protection (1.2.0)
+    rack (2.2.4)
+    rack-protection (3.0.4)
       rack
     rspec (2.11.0)
       rspec-core (~> 2.11.0)
@@ -45,15 +47,17 @@ GEM
     rspec-expectations (2.11.3)
       diff-lcs (~> 1.1.3)
     rspec-mocks (2.11.3)
+    ruby2_keywords (0.0.5)
     sim_launcher (0.4.6)
       sinatra
-    sinatra (1.3.3)
-      rack (~> 1.3, >= 1.3.6)
-      rack-protection (~> 1.2)
-      tilt (~> 1.3, >= 1.3.3)
+    sinatra (3.0.4)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.4)
+      tilt (~> 2.0)
     slop (3.3.3)
     thor (0.16.0)
-    tilt (1.3.3)
+    tilt (2.0.11)
     xcodeproj (0.3.4)
       activesupport (~> 3.2.6)