diff --git a/Gemfile.lock b/Gemfile.lock
index 83c1bcc..0e7fb11 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
     minitest (5.14.4)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     os (1.1.4)
     pry (0.13.1)
@@ -81,8 +81,8 @@ GEM
       pry (~> 0.13.0)
     public_suffix (4.0.6)
     raabro (1.4.0)
-    rack (2.2.3)
-    rack-protection (2.1.0)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     ruby2_keywords (0.0.5)
     rufus-scheduler (3.8.0)
@@ -94,16 +94,16 @@ GEM
       faraday (>= 0.17.3, < 2.0)
       jwt (>= 1.5, < 3.0)
       multi_json (~> 1.10)
-    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-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)
     smashing (1.3.5)
       coffee-script (~> 2.4)
@@ -124,7 +124,7 @@ GEM
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
     thor (1.1.0)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     tzinfo-data (1.2021.5)