diff --git a/Gemfile.lock b/Gemfile.lock
index 50c64fc..77f1d02 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,12 +14,12 @@ GEM
       concurrent-ruby (~> 1.0)
     minitest (5.15.0)
     multi_json (1.15.0)
-    mustermann (1.1.1)
+    mustermann (1.1.2)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.8)
     puma (5.6.4)
       nio4r (~> 2.0)
-    rack (2.2.3)
+    rack (2.2.7)
     rack-attack (6.6.0)
       rack (>= 1.0, < 3)
     rack-protection (2.2.0)
@@ -59,7 +59,7 @@ GEM
       tilt (~> 2.0)
     sinatra-reloader (1.0)
       sinatra-contrib
-    tilt (2.0.10)
+    tilt (2.1.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)