diff --git a/Gemfile b/Gemfile
index 423e9c4..4fadf86 100644
--- a/Gemfile
+++ b/Gemfile
@@ -43,7 +43,7 @@ gem 'bootstrap', '~> 5.3', '>= 5.3.2'
 gem 'dartsass-rails', '~> 0.5.0'
 gem 'dartsass-sprockets', '~> 3.1'
 gem 'simple_form'
-gem 'activeadmin', "4.0.0.beta19"
+gem 'activeadmin', "4.0.0.beta21"
 gem 'base64'
 gem 'redcarpet'
 gem 'rails_autolink'
diff --git a/Gemfile.lock b/Gemfile.lock
index b1ae187..2c7bbd0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,14 +54,14 @@ GEM
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activeadmin (4.0.0.beta19)
+    activeadmin (4.0.0.beta21)
       arbre (~> 2.0)
       csv
       formtastic (>= 5.0)
       formtastic_i18n (>= 0.7)
       inherited_resources (~> 2.0)
       kaminari (>= 1.2.1)
-      railties (>= 7.0)
+      railties (>= 7.2)
       ransack (>= 4.0)
     activejob (8.1.2)
       activesupport (= 8.1.2)
@@ -183,8 +183,9 @@ GEM
       railties (>= 7.0)
       responders (>= 2)
     io-console (0.8.2)
-    irb (1.16.0)
+    irb (1.17.0)
       pp (>= 0.6.0)
+      prism (>= 1.3.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     json (2.18.1)
@@ -302,7 +303,7 @@ GEM
       activerecord (>= 7.2)
       activesupport (>= 7.2)
       i18n
-    rdoc (7.1.0)
+    rdoc (7.2.0)
       erb
       psych (>= 4.0.0)
       tsort
@@ -386,7 +387,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  activeadmin (= 4.0.0.beta19)
+  activeadmin (= 4.0.0.beta21)
   altcha-rails
   base64
   bootsnap