diff --git a/Gemfile.lock b/Gemfile.lock
index 2ae75414f..88c7d03db 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,7 +68,7 @@ GEM
     minitest (5.14.4)
     multi_json (1.15.0)
     multi_xml (0.6.0)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     nokogiri (1.12.5)
       mini_portile2 (~> 2.6.1)
@@ -86,8 +86,8 @@ GEM
       pry (~> 0.13.0)
     public_suffix (4.0.6)
     racc (1.5.2)
-    rack (2.2.3)
-    rack-protection (2.1.0)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-ssl (1.4.1)
       rack
@@ -141,7 +141,7 @@ GEM
       rubocop (~> 1.0)
       rubocop-ast (>= 1.1.0)
     ruby-progressbar (1.11.0)
-    ruby2_keywords (0.0.4)
+    ruby2_keywords (0.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -156,19 +156,19 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.2)
-    sinatra (2.1.0)
-      mustermann (~> 1.0)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
       rack (~> 2.2)
-      rack-protection (= 2.1.0)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sinatra-activerecord (2.0.22)
       activerecord (>= 4.1)
       sinatra (>= 1.0)
-    sinatra-contrib (2.1.0)
+    sinatra-contrib (2.2.3)
       multi_json
-      mustermann (~> 1.0)
-      rack-protection (= 2.1.0)
-      sinatra (= 2.1.0)
+      mustermann (~> 2.0)
+      rack-protection (= 2.2.3)
+      sinatra (= 2.2.3)
       tilt (~> 2.0)
     sinatra-flash (0.3.0)
       sinatra (>= 1.0.0)
@@ -182,7 +182,7 @@ GEM
       tins (~> 1.0)
     thor (1.1.0)
     thread (0.2.2)
-    tilt (2.0.10)
+    tilt (2.0.11)
     timecop (0.9.4)
     tins (1.28.0)
       sync