diff --git a/Gemfile b/Gemfile
index cad5308..ce09e50 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'activesupport', '~> 5.2'
+gem 'activesupport', '~> 6.0'
 gem 'rubocop', '~> 1'
 gem 'sass', '~> 3.7'
 gem 'sinatra', '~> 2.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7ef2631..72d0e91 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,19 +1,20 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.6)
+    activesupport (6.0.6.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
+      zeitwerk (~> 2.2, >= 2.2.2)
     ast (2.4.2)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.2.0)
     daemons (1.4.1)
     eventmachine (1.2.7)
     ffi (1.15.4)
-    i18n (1.8.11)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    minitest (5.14.4)
+    minitest (5.17.0)
     multi_json (1.15.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
@@ -64,15 +65,16 @@ GEM
       rack (>= 1, < 3)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.9)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
     unicode-display_width (2.0.0)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  activesupport (~> 5.2)
+  activesupport (~> 6.0)
   rubocop (~> 1)
   sass (~> 3.7)
   sinatra (~> 2.1)