diff --git a/Gemfile.lock b/Gemfile.lock
index 8d6c558560..14a42e1554 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     msgpack (1.7.0)
     multi_json (1.14.1)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     net-http-persistent (3.0.0)
       connection_pool (~> 2.2)
@@ -133,7 +133,7 @@ GEM
       json
       websocket (~> 1.0)
     rack (2.2.6.2)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.3)
       rack
     rack-ssl (1.4.1)
       rack
@@ -179,7 +179,7 @@ GEM
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-progressbar (1.10.0)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
@@ -191,20 +191,19 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    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)
-    sinatra-contrib (2.0.8.1)
-      backports (>= 2.8.2)
+    sinatra-contrib (2.2.3)
       multi_json
-      mustermann (~> 1.0)
-      rack-protection (= 2.0.8.1)
-      sinatra (= 2.0.8.1)
+      mustermann (~> 2.0)
+      rack-protection (= 2.2.3)
+      sinatra (= 2.2.3)
       tilt (~> 2.0)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.1.0)
     travis (1.8.9)
       backports
       faraday (~> 0.9)