diff --git a/Gemfile.lock b/Gemfile.lock
index d50cc7a..fb75604 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -147,7 +147,7 @@ GEM
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     newrelic_rpm (6.12.0.367)
     nio4r (2.5.2)
@@ -180,8 +180,8 @@ GEM
       pry (>= 0.10.4)
     public_suffix (3.0.3)
     racc (1.5.2)
-    rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -234,7 +234,7 @@ GEM
       rack (>= 1.0.0)
       rspec (>= 1.3.0)
     rspec-support (3.2.2)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     ruby_parser (3.11.0)
       sexp_processor (~> 4.9)
     sass (3.5.6)
@@ -254,10 +254,10 @@ GEM
     sexp_processor (4.10.1)
     shoulda-matchers (2.8.0)
       activesupport (>= 3.0.0)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
@@ -273,7 +273,7 @@ GEM
       rack (>= 1, < 3)
     thor (0.19.4)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)