diff --git a/Gemfile.lock b/Gemfile.lock
index b20db69..2ee6a9a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -73,11 +73,12 @@ GEM
       metaclass (~> 0.0.1)
     mono_logger (1.1.0)
     multi_json (1.13.1)
-    mustermann (1.0.3)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
     public_suffix (3.0.3)
     puma (3.12.1)
-    rack (2.0.6)
-    rack-protection (2.0.5)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -95,20 +96,21 @@ GEM
       sinatra (>= 0.9.2)
       vegas (~> 0.1.2)
     rmagick (5.0.0)
+    ruby2_keywords (0.0.5)
     sass (3.7.3)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     serialport (1.3.1)
-    sinatra (2.0.5)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     stringex (1.5.1)
     thor (0.19.4)
-    tilt (2.0.9)
+    tilt (2.0.11)
     uuidtools (2.1.5)
     vegas (0.1.11)
       rack (>= 1.0.0)