diff --git a/Gemfile.lock b/Gemfile.lock
index b2ec1c6..986686e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -58,7 +58,10 @@ GEM
     mongo (2.6.4)
       bson (>= 4.3.0, < 5.0.0)
     multi_xml (0.6.0)
-    mustermann (1.0.3)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
     nokogiri (1.10.1-x64-mingw32)
       mini_portile2 (~> 2.4.0)
     pry (0.12.2)
@@ -67,8 +70,8 @@ GEM
     pry-byebug (3.6.0)
       byebug (~> 10.0)
       pry (~> 0.10)
-    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)
@@ -77,20 +80,22 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.4)
       loofah (~> 2.2, >= 2.2.2)
+    ruby2_keywords (0.0.5)
     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)
     thread_safe (0.3.6)
-    tilt (2.0.9)
+    tilt (2.0.11)
     time_difference (0.7.0)
       activesupport (~> 5.1)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
 
 PLATFORMS
+  ruby
   x64-mingw32
 
 DEPENDENCIES