diff --git a/CHANGELOG.md b/CHANGELOG.md
index d37414c9..b2b3decc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,12 @@
 
 ## Master (unreleased)
 
+## 1.5.0 [☰](https://github.com/activeadmin/arbre/compare/v1.4.0...v1.5.0)
+
+* Avoid mutating string literals. [#292][] by [@tomgilligan][]
 * Allow activesupport 7.0. [#314][] by [@tagliala][]
+* Drop ruby 2.5 support. [#315][] by [@alejandroperea][]
+* Fix keyword delegation in form component. [#318][] by [@deivid-rodriguez][]
 
 ## 1.4.0 [☰](https://github.com/activeadmin/arbre/compare/v1.3.0...v1.4.0)
 
@@ -100,11 +105,15 @@ Initial release and extraction from Active Admin
 [#202]: https://github.com/activeadmin/arbre/pull/202
 [#205]: https://github.com/activeadmin/arbre/pull/205
 [#242]: https://github.com/activeadmin/arbre/pull/242
+[#292]: https://github.com/activeadmin/arbre/pull/292
 [#314]: https://github.com/activeadmin/arbre/pull/314
+[#315]: https://github.com/activeadmin/arbre/pull/315
+[#318]: https://github.com/activeadmin/arbre/pull/318
 
 [@aramvisser]: https://github.com/aramvisser
 [@LTe]: https://github.com/LTe
 [@OscarBarrett]: https://github.com/OscarBarrett
+[@alejandroperea]: https://github.com/alejandroperea
 [@alexesDev]: https://github.com/alexesDev
 [@deivid-rodriguez]: https://github.com/deivid-rodriguez
 [@dlackty]: https://github.com/dlackty
@@ -117,3 +126,4 @@ Initial release and extraction from Active Admin
 [@timoschilling]: https://github.com/timoschilling
 [@varyonic]: https://github.com/varyonic
 [@tagliala]: https://github.com/tagliala
+[@tomgilligan]: https://github.com/tomgilligan
diff --git a/Gemfile.lock b/Gemfile.lock
index e1f620df..6bec317d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    arbre (1.4.0)
+    arbre (1.5.0)
       activesupport (>= 3.0.0, < 7.1)
       ruby2_keywords (>= 0.0.2, < 1.0)
 
diff --git a/Rakefile b/Rakefile
index 0aa314a0..2993a815 100644
--- a/Rakefile
+++ b/Rakefile
@@ -2,6 +2,8 @@
 require 'bundler'
 Bundler::GemHelper.install_tasks
 
+import "tasks/gemfiles.rake"
+
 require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec)
 
diff --git a/gemfiles/rails_61.gemfile.lock b/gemfiles/rails_61.gemfile.lock
index ecc6a5ea..6962da77 100644
--- a/gemfiles/rails_61.gemfile.lock
+++ b/gemfiles/rails_61.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    arbre (1.4.0)
+    arbre (1.5.0)
       activesupport (>= 3.0.0, < 7.1)
       ruby2_keywords (>= 0.0.2, < 1.0)
 
@@ -233,4 +233,4 @@ DEPENDENCIES
   rubocop-packaging
 
 BUNDLED WITH
-   2.3.3
+   2.3.6
diff --git a/lib/arbre/version.rb b/lib/arbre/version.rb
index 8d41458d..b5aee0de 100644
--- a/lib/arbre/version.rb
+++ b/lib/arbre/version.rb
@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 module Arbre
-  VERSION = "1.4.0"
+  VERSION = "1.5.0"
 end
diff --git a/tasks/gemfiles.rake b/tasks/gemfiles.rake
new file mode 100644
index 00000000..286cf839
--- /dev/null
+++ b/tasks/gemfiles.rake
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+desc "Bundle all Gemfiles"
+task :bundle do |_t, opts|
+  ["Gemfile", *Dir.glob("gemfiles/*.gemfile")].each do |gemfile|
+    Bundler.with_original_env do
+      sh({ "BUNDLE_GEMFILE" => gemfile }, "bundle", *opts)
+    end
+  end
+end