diff --git a/Gemfile.lock b/Gemfile.lock
index 2e0aee4..bee60a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,14 +11,14 @@ GEM
     json (2.3.0)
     json-schema (2.8.1)
       addressable (>= 2.4)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     parallel (1.19.1)
     parser (2.7.0.2)
       ast (~> 2.4.0)
     public_suffix (4.0.3)
-    rack (2.1.2)
-    rack-protection (2.0.8.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rainbow (3.0.0)
     rspec (3.9.0)
@@ -42,17 +42,17 @@ GEM
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 1.7)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.2)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     thin (1.7.2)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    tilt (2.0.10)
+    tilt (2.0.11)
     unicode-display_width (1.6.1)
 
 PLATFORMS