diff --git a/Gemfile.lock b/Gemfile.lock
index 8fc0de8..7a4f481 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -115,7 +115,8 @@ GEM
     mini_portile2 (2.3.0)
     minitest (5.11.1)
     multi_json (1.13.1)
-    mustermann (1.0.1)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     newrelic_rpm (4.7.1.340)
     nio4r (2.2.0)
     nokogiri (1.8.1)
@@ -135,8 +136,8 @@ GEM
     prawn-table (0.2.2)
       prawn (>= 1.3.0, < 3.0.0)
     puma (3.11.2)
-    rack (2.0.3)
-    rack-protection (2.0.0)
+    rack (2.2.3)
+    rack-protection (2.1.0)
       rack
     rack-test (0.8.2)
       rack (>= 1.0, < 3)
@@ -192,6 +193,7 @@ GEM
       rspec-mocks (~> 3.7.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.0)
+    ruby2_keywords (0.0.2)
     ruby_dep (1.5.0)
     ruby_http_client (3.3.0)
     sass (3.5.5)
@@ -213,10 +215,10 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    sinatra (2.0.0)
+    sinatra (2.1.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.0)
+      rack (~> 2.2)
+      rack-protection (= 2.1.0)
       tilt (~> 2.0)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -235,7 +237,7 @@ GEM
     sqlite3 (1.3.13-x86-mingw32)
     thor (0.20.0)
     thread_safe (0.3.6)
-    tilt (2.0.8)
+    tilt (2.0.10)
     ttfunk (1.5.1)
     turbolinks (5.1.0)
       turbolinks-source (~> 5.1)