diff --git a/.rubocop.yml b/.rubocop.yml
index 9e5fca4..d5f2aa3 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -559,9 +559,6 @@ RSpec/SpecFilePathFormat:
 RSpec/SpecFilePathSuffix:
   Enabled: true
 
-RSpec/StringAsInstanceDoubleConstant:
-  Enabled: true
-
 RSpec/StubbedMock:
   Enabled: false
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb824bf..15447a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## unreleased [☰](https://github.com/activeadmin/arbre/compare/v2.1.0...master)
+## 2.2.0 [☰](https://github.com/activeadmin/arbre/compare/v2.1.0...v2.2.0)
 
 * Add some missing HTML5 elements [#655][] by [@tagliala][]
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 4a629aa..d71b228 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    arbre (2.1.0)
+    arbre (2.2.0)
       activesupport (>= 7.0)
 
 GEM
@@ -99,7 +99,7 @@ GEM
       activesupport (>= 3.0.0)
       railties (>= 3.0.0)
       thor (>= 0.14.6)
-    concurrent-ruby (1.3.4)
+    concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     crass (1.0.6)
     date (3.4.1)
@@ -109,14 +109,15 @@ GEM
     erubi (1.13.1)
     globalid (1.2.1)
       activesupport (>= 6.1)
-    i18n (1.14.6)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     io-console (0.8.0)
-    irb (1.14.3)
+    irb (1.15.1)
+      pp (>= 0.6.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     json (2.9.1)
-    language_server-protocol (3.17.0.3)
+    language_server-protocol (3.17.0.4)
     logger (1.6.5)
     loofah (2.24.0)
       crass (~> 1.0.2)
@@ -141,30 +142,33 @@ GEM
       timeout
     net-smtp (0.5.0)
     nio4r (2.7.4)
-    nokogiri (1.18.1)
+    nokogiri (1.18.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.1-aarch64-linux-gnu)
+    nokogiri (1.18.2-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.1-arm64-darwin)
+    nokogiri (1.18.2-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-darwin)
+    nokogiri (1.18.2-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-linux-gnu)
+    nokogiri (1.18.2-x86_64-linux-gnu)
       racc (~> 1.4)
     parallel (1.26.3)
-    parser (3.3.6.0)
+    parser (3.3.7.0)
       ast (~> 2.4.1)
       racc
+    pp (0.6.2)
+      prettyprint
+    prettyprint (0.2.0)
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    psych (5.2.2)
+    psych (5.2.3)
       date
       stringio
     public_suffix (6.0.1)
     racc (1.8.1)
-    rack (3.1.8)
+    rack (3.1.9)
     rack-session (2.1.0)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
@@ -203,7 +207,7 @@ GEM
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.2.1)
-    rdoc (6.10.0)
+    rdoc (6.11.0)
       psych (>= 4.0.0)
     regexp_parser (2.10.0)
     reline (0.6.0)
@@ -230,17 +234,17 @@ GEM
       rspec-mocks (~> 3.13)
       rspec-support (~> 3.13)
     rspec-support (3.13.2)
-    rubocop (1.70.0)
+    rubocop (1.71.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 2.9.3, < 3.0)
-      rubocop-ast (>= 1.36.2, < 2.0)
+      rubocop-ast (>= 1.38.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.37.0)
+    rubocop-ast (1.38.0)
       parser (>= 3.3.1.0)
     rubocop-capybara (2.21.0)
       rubocop (~> 1.41)
@@ -249,7 +253,7 @@ GEM
     rubocop-performance (1.23.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-rspec (3.3.0)
+    rubocop-rspec (3.4.0)
       rubocop (~> 1.61)
     ruby-progressbar (1.13.0)
     securerandom (0.4.1)
@@ -267,7 +271,7 @@ GEM
     timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (3.1.3)
+    unicode-display_width (3.1.4)
       unicode-emoji (~> 4.0, >= 4.0.4)
     unicode-emoji (4.0.4)
     uri (1.0.2)
@@ -305,4 +309,4 @@ DEPENDENCIES
   simplecov-cobertura
 
 BUNDLED WITH
-   2.6.2
+   2.6.3
diff --git a/gemfiles/rails_70/Gemfile b/gemfiles/rails_70/Gemfile
index aa95040..216df43 100644
--- a/gemfiles/rails_70/Gemfile
+++ b/gemfiles/rails_70/Gemfile
@@ -16,6 +16,8 @@ group :rails do
   gem 'combustion'
   gem 'capybara'
 
+  gem "concurrent-ruby", "1.3.4" # Ref: rails/rails#54260
+
   # FIXME: relax this dependency when Ruby 3.1 support will be dropped
   gem "zeitwerk", "~> 2.6.18"
 end
diff --git a/gemfiles/rails_70/Gemfile.lock b/gemfiles/rails_70/Gemfile.lock
index 49a4bc8..ffd4ac2 100644
--- a/gemfiles/rails_70/Gemfile.lock
+++ b/gemfiles/rails_70/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    arbre (2.1.0)
+    arbre (2.2.0)
       activesupport (>= 7.0)
 
 GEM
@@ -98,7 +98,7 @@ GEM
     erubi (1.13.1)
     globalid (1.2.1)
       activesupport (>= 6.1)
-    i18n (1.14.6)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     loofah (2.24.0)
       crass (~> 1.0.2)
@@ -122,17 +122,18 @@ GEM
     net-protocol (0.2.2)
       timeout
     net-smtp (0.5.0)
+      net-protocol
     nio4r (2.7.4)
-    nokogiri (1.18.1)
+    nokogiri (1.18.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.1-aarch64-linux-gnu)
+    nokogiri (1.18.2-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.1-arm64-darwin)
+    nokogiri (1.18.2-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-darwin)
+    nokogiri (1.18.2-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-linux-gnu)
+    nokogiri (1.18.2-x86_64-linux-gnu)
       racc (~> 1.4)
     pry (0.15.2)
       coderay (~> 1.1)
@@ -226,6 +227,7 @@ DEPENDENCIES
   arbre!
   capybara
   combustion
+  concurrent-ruby (= 1.3.4)
   pry
   rails (~> 7.0.0)
   rake
@@ -236,4 +238,4 @@ DEPENDENCIES
   zeitwerk (~> 2.6.18)
 
 BUNDLED WITH
-   2.6.2
+   2.6.3
diff --git a/gemfiles/rails_71/Gemfile.lock b/gemfiles/rails_71/Gemfile.lock
index 7cb8c80..b6e99d3 100644
--- a/gemfiles/rails_71/Gemfile.lock
+++ b/gemfiles/rails_71/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    arbre (2.1.0)
+    arbre (2.2.0)
       activesupport (>= 7.0)
 
 GEM
@@ -104,7 +104,7 @@ GEM
       activesupport (>= 3.0.0)
       railties (>= 3.0.0)
       thor (>= 0.14.6)
-    concurrent-ruby (1.3.4)
+    concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     crass (1.0.6)
     date (3.4.1)
@@ -114,10 +114,11 @@ GEM
     erubi (1.13.1)
     globalid (1.2.1)
       activesupport (>= 6.1)
-    i18n (1.14.6)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     io-console (0.8.0)
-    irb (1.14.3)
+    irb (1.15.1)
+      pp (>= 0.6.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     logger (1.6.5)
@@ -145,26 +146,29 @@ GEM
       timeout
     net-smtp (0.5.0)
     nio4r (2.7.4)
-    nokogiri (1.18.1)
+    nokogiri (1.18.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.1-aarch64-linux-gnu)
+    nokogiri (1.18.2-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.1-arm64-darwin)
+    nokogiri (1.18.2-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-darwin)
+    nokogiri (1.18.2-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-linux-gnu)
+    nokogiri (1.18.2-x86_64-linux-gnu)
       racc (~> 1.4)
+    pp (0.6.2)
+      prettyprint
+    prettyprint (0.2.0)
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    psych (5.2.2)
+    psych (5.2.3)
       date
       stringio
     public_suffix (6.0.1)
     racc (1.8.1)
-    rack (3.1.8)
+    rack (3.1.9)
     rack-session (2.1.0)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
@@ -202,7 +206,7 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rake (13.2.1)
-    rdoc (6.10.0)
+    rdoc (6.11.0)
       psych (>= 4.0.0)
     regexp_parser (2.10.0)
     reline (0.6.0)
@@ -273,4 +277,4 @@ DEPENDENCIES
   zeitwerk (~> 2.6.18)
 
 BUNDLED WITH
-   2.6.2
+   2.6.3
diff --git a/gemfiles/rails_72/Gemfile.lock b/gemfiles/rails_72/Gemfile.lock
index 17cdd5b..58fabab 100644
--- a/gemfiles/rails_72/Gemfile.lock
+++ b/gemfiles/rails_72/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    arbre (2.1.0)
+    arbre (2.2.0)
       activesupport (>= 7.0)
 
 GEM
@@ -98,7 +98,7 @@ GEM
       activesupport (>= 3.0.0)
       railties (>= 3.0.0)
       thor (>= 0.14.6)
-    concurrent-ruby (1.3.4)
+    concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     crass (1.0.6)
     date (3.4.1)
@@ -108,10 +108,11 @@ GEM
     erubi (1.13.1)
     globalid (1.2.1)
       activesupport (>= 6.1)
-    i18n (1.14.6)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     io-console (0.8.0)
-    irb (1.14.3)
+    irb (1.15.1)
+      pp (>= 0.6.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     logger (1.6.5)
@@ -138,26 +139,29 @@ GEM
       timeout
     net-smtp (0.5.0)
     nio4r (2.7.4)
-    nokogiri (1.18.1)
+    nokogiri (1.18.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.18.1-aarch64-linux-gnu)
+    nokogiri (1.18.2-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.1-arm64-darwin)
+    nokogiri (1.18.2-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-darwin)
+    nokogiri (1.18.2-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.1-x86_64-linux-gnu)
+    nokogiri (1.18.2-x86_64-linux-gnu)
       racc (~> 1.4)
+    pp (0.6.2)
+      prettyprint
+    prettyprint (0.2.0)
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    psych (5.2.2)
+    psych (5.2.3)
       date
       stringio
     public_suffix (6.0.1)
     racc (1.8.1)
-    rack (3.1.8)
+    rack (3.1.9)
     rack-session (2.1.0)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
@@ -195,7 +199,7 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rake (13.2.1)
-    rdoc (6.10.0)
+    rdoc (6.11.0)
       psych (>= 4.0.0)
     regexp_parser (2.10.0)
     reline (0.6.0)
@@ -267,4 +271,4 @@ DEPENDENCIES
   zeitwerk (~> 2.6.18)
 
 BUNDLED WITH
-   2.6.2
+   2.6.3
diff --git a/lib/arbre/version.rb b/lib/arbre/version.rb
index 925febf..a309b85 100644
--- a/lib/arbre/version.rb
+++ b/lib/arbre/version.rb
@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 module Arbre
-  VERSION = "2.1.0"
+  VERSION = "2.2.0"
 end