diff --git a/Gemfile.lock b/Gemfile.lock
index d520abb..0618e0a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -107,7 +107,7 @@ GEM
     minitest (5.14.1)
     msgpack (1.3.3)
     mustache (1.1.1)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.2)
     nokogiri (1.10.9)
@@ -119,8 +119,8 @@ GEM
     public_suffix (4.0.5)
     puma (4.3.5)
       nio4r (~> 2.0)
-    rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -215,13 +215,13 @@ GEM
     rubocop-rspec (1.39.0)
       rubocop (>= 0.68.1)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     shoulda-matchers (3.1.3)
       activesupport (>= 4.0.0)
-    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)
     spring (2.1.0)
     spring-watcher-listen (2.0.1)
@@ -238,7 +238,7 @@ GEM
     temple (0.8.2)
     thor (1.0.1)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
     unicode-display_width (1.7.0)