diff --git a/Gemfile.lock b/Gemfile.lock
index 3b70863..f7c83c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -159,7 +159,7 @@ GEM
     mini_portile2 (2.6.1)
     minitest (5.14.4)
     multi_json (1.15.0)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     mutations (0.9.1)
       activesupport
@@ -201,10 +201,10 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.4)
     rack-livereload (0.3.17)
       rack
-    rack-protection (2.1.0)
+    rack-protection (2.2.3)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -248,10 +248,10 @@ GEM
     sassc (2.4.0)
       ffi (~> 1.9)
     shellany (0.0.1)
-    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)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
@@ -266,7 +266,7 @@ GEM
       unicode_utils (~> 1.4)
     strings-ansi (0.2.0)
     thor (1.1.0)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tty-color (0.6.0)
     tty-screen (0.8.1)
     tty-table (0.12.0)