diff --git a/Gemfile.lock b/Gemfile.lock
index 4ab03aa..b64e1dc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,15 +29,15 @@ GEM
     jaro_winkler (1.5.4)
     json (2.3.0)
     minitest (5.14.1)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     parallel (1.19.1)
     parser (2.7.1.2)
       ast (~> 2.4.0)
-    rack (2.2.3)
+    rack (2.2.4)
     rack-cache (1.12.0)
       rack (>= 0.4)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.3)
       rack
     rainbow (3.0.0)
     rubocop (0.76.0)
@@ -60,18 +60,18 @@ GEM
     rubocop-rspec (1.30.1)
       rubocop (>= 0.60.0)
     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 (1.8.0)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
     unicode-display_width (1.6.1)