diff --git a/Gemfile.lock b/Gemfile.lock
index d88d095..0322bab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,20 +4,22 @@ GEM
     daemons (1.2.6)
     eventmachine (1.2.5)
     jwt (2.1.0)
-    mustermann (1.0.2)
-    rack (2.0.4)
-    rack-protection (2.0.1)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
-    sinatra (2.0.1)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.1)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     thin (1.7.2)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    tilt (2.0.8)
+    tilt (2.0.10)
 
 PLATFORMS
   ruby