diff --git a/.ruby-version b/.ruby-version
index fcdb2e10..1454f6ed 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-4.0.0
+4.0.1
diff --git a/Gemfile b/Gemfile
index 34e53cba..09bb1cc3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,8 +12,8 @@ gem "sprockets-rails"
 gem "cssbundling-rails", "1.4.2" # TODO: relax this dependency when rails/cssbundling-rails#169 will be fixed
 gem "importmap-rails"
 
-gem "activeadmin", "4.0.0.beta19" # github: "activeadmin/activeadmin", branch: "master"
-gem "devise"
+gem "activeadmin", "4.0.0.beta20" # github: "activeadmin/activeadmin", branch: "master"
+gem "devise", "~> 4.9" # TODO: relax this dependency when formtastic/formtastic#1401 will be fixed
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem "tzinfo-data", platforms: %i[ windows jruby ]
diff --git a/Gemfile.lock b/Gemfile.lock
index 8b5141da..7ceb1835 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,14 +47,14 @@ GEM
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activeadmin (4.0.0.beta19)
+    activeadmin (4.0.0.beta20)
       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)
@@ -195,12 +195,12 @@ GEM
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
-    prism (1.7.0)
+    prism (1.9.0)
     psych (5.3.1)
       date
       stringio
     public_suffix (7.0.2)
-    puma (7.1.0)
+    puma (7.2.0)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.2.4)
@@ -246,7 +246,7 @@ GEM
       activerecord (>= 7.2)
       activesupport (>= 7.2)
       i18n
-    rdoc (7.0.3)
+    rdoc (7.1.0)
       erb
       psych (>= 4.0.0)
       tsort
@@ -259,7 +259,7 @@ GEM
     rexml (3.4.4)
     rubyzip (3.2.2)
     securerandom (0.4.1)
-    selenium-webdriver (4.39.0)
+    selenium-webdriver (4.40.0)
       base64 (~> 0.2)
       logger (~> 1.4)
       rexml (~> 3.2, >= 3.2.5)
@@ -312,11 +312,11 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  activeadmin (= 4.0.0.beta19)
+  activeadmin (= 4.0.0.beta20)
   capybara
   cssbundling-rails (= 1.4.2)
   debug
-  devise
+  devise (~> 4.9)
   importmap-rails
   puma
   rails (~> 8.1.2)
@@ -328,7 +328,7 @@ DEPENDENCIES
   tzinfo-data
 
 RUBY VERSION
-  ruby 4.0.0
+  ruby 4.0.1
 
 BUNDLED WITH
-  4.0.3
+  4.0.5
diff --git a/package.json b/package.json
index 9322d915..f9afb48c 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "private": "true",
   "type": "module",
   "dependencies": {
-    "@activeadmin/activeadmin": "4.0.0-beta19",
+    "@activeadmin/activeadmin": "4.0.0-beta20",
     "tailwindcss": "^4.1.18"
   },
   "scripts": {
diff --git a/yarn.lock b/yarn.lock
index 308af7b5..401aa9ea 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@activeadmin/activeadmin@4.0.0-beta19":
-  version "4.0.0-beta19"
-  resolved "https://registry.yarnpkg.com/@activeadmin/activeadmin/-/activeadmin-4.0.0-beta19.tgz#fcc7e43de40bb0d1ba5ee1ef6eed0c2580a3d87f"
-  integrity sha512-U/5yHRqlY21etaWK6zsN0O0Flwp/hoajbG1kt2OoiMl+yo3GlV10AM50j6cJioRCP7L0L3wtyAjO+aVJUWCbDg==
+"@activeadmin/activeadmin@4.0.0-beta20":
+  version "4.0.0-beta20"
+  resolved "https://registry.yarnpkg.com/@activeadmin/activeadmin/-/activeadmin-4.0.0-beta20.tgz#e11dfbfb5e4ff1f107db05451b696b1b76dbcb0f"
+  integrity sha512-xsA9aOTGAh6ZquOMSvNukMbIiuf+/+xesvXs0aZHA7h9Dqd9CpNzj19ns5rWmgJesXyY5hz3GJhrt+q7ApL0wQ==
   dependencies:
     "@rails/ujs" "7.1.600"
     flowbite "3.1.2"