diff --git a/Gemfile.lock b/Gemfile.lock
index c656319..0c7aad3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -165,7 +165,9 @@ GEM
     marcel (0.3.2)
       mimemagic (~> 0.3.2)
     method_source (0.9.0)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
@@ -174,7 +176,8 @@ GEM
     msgpack (1.2.4)
     multi_json (1.13.1)
     multipart-post (2.0.0)
-    mustermann (1.0.3)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-sftp (2.1.2)
@@ -189,8 +192,8 @@ GEM
     public_suffix (3.0.3)
     puma (3.12.0)
     raabro (1.1.6)
-    rack (2.0.5)
-    rack-protection (2.0.3)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -225,6 +228,7 @@ GEM
     redis (4.0.2)
     request_store (1.4.1)
       rack (>= 1.4)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
     sass (3.5.7)
@@ -249,10 +253,10 @@ GEM
     sidekiq-cron (1.0.4)
       fugit (~> 1.1)
       sidekiq (>= 4.2.1)
-    sinatra (2.0.3)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.3)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -268,7 +272,7 @@ GEM
       sprockets (>= 3.0.0)
     thor (0.20.0)
     thread_safe (0.3.6)
-    tilt (2.0.8)
+    tilt (2.0.10)
     turbolinks (5.1.1)
       turbolinks-source (~> 5.1)
     turbolinks-source (5.1.0)