diff --git a/Gemfile.lock b/Gemfile.lock
index 72a2422..9d2ffba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,6 @@
+GEM
+  specs:
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -7,10 +10,10 @@ GEM
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
-    rack (2.2.2)
-    rack-protection (2.0.8.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
@@ -18,18 +21,18 @@ GEM
     redcarpet (3.5.0)
     rerun (0.13.0)
       listen (~> 3.0)
-    ruby2_keywords (0.0.2)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sqlite3 (1.4.2)
     thin (1.7.2)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    tilt (2.0.10)
+    tilt (2.0.11)
 
 PLATFORMS
   ruby