diff --git a/Gemfile.lock b/Gemfile.lock
index b817b4c..2736040 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,7 +6,8 @@ GEM
     daemons (1.3.1)
     eventmachine (1.2.7)
     method_source (0.9.2)
-    mustermann (1.0.3)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
@@ -14,12 +15,13 @@ GEM
       pry (~> 0.9)
       slop (~> 3.0)
     rack (2.2.3)
-    rack-protection (2.0.5)
+    rack-protection (2.2.0)
       rack
-    sinatra (2.0.5)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.5)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     slack-notifier (2.3.2)
     slop (3.6.0)
@@ -27,7 +29,7 @@ GEM
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    tilt (2.0.9)
+    tilt (2.0.10)
 
 PLATFORMS
   ruby