diff --git a/.github/workflows/rspec.yml b/.github/workflows/rspec.yml
index 870f4d5..d8bf4cb 100644
--- a/.github/workflows/rspec.yml
+++ b/.github/workflows/rspec.yml
@@ -17,12 +17,14 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
         gemfile:
           - gemfiles/rails_5.2.gemfile
           - gemfiles/rails_6.0.gemfile
           - gemfiles/rails_6.1.gemfile
           - gemfiles/rails_7.0.gemfile
           - gemfiles/rails_7.1.gemfile
+          - gemfiles/rails_7.2.gemfile
         exclude:
           - gemfile: gemfiles/rails_5.2.gemfile
             ruby: "3.0"
@@ -34,6 +36,8 @@ jobs:
             ruby: "2.6"
           - gemfile: gemfiles/rails_7.1.gemfile
             ruby: "2.6"
+          - gemfile: gemfiles/rails_7.2.gemfile
+            ruby: "2.6"
     env:
       BUNDLE_GEMFILE: ${{ format('{0}/{1}', github.workspace, matrix.gemfile) }}
       BUNDLE_PATH: ${{ format('{0}/vendor/bundle', github.workspace) }}
diff --git a/Appraisals b/Appraisals
index 3adc306..84d6eea 100644
--- a/Appraisals
+++ b/Appraisals
@@ -13,9 +13,13 @@ appraise "rails-6.1" do
 end
 
 appraise "rails-7.0" do
-  gem 'activemodel', '~> 7.0.8'
+  gem 'activemodel', '~> 7.0.8.4'
 end
 
 appraise "rails-7.1" do
-  gem 'activemodel', '~> 7.1.1'
+  gem 'activemodel', '~> 7.1.4'
+end
+
+appraise "rails-7.2" do
+  gem 'activemodel', '~> 7.2.1'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index cc2014d..fba761c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,39 +1,39 @@
 PATH
   remote: .
   specs:
-    nested_record (1.1.1)
-      activemodel (> 5.2, < 7.2)
+    nested_record (1.1.2)
+      activemodel (> 5.2, < 8.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (7.1.1)
-      activesupport (= 7.1.1)
-    activesupport (7.1.1)
+    activemodel (7.2.1)
+      activesupport (= 7.2.1)
+    activesupport (7.2.1)
       base64
       bigdecimal
-      concurrent-ruby (~> 1.0, >= 1.0.2)
+      concurrent-ruby (~> 1.0, >= 1.3.1)
       connection_pool (>= 2.2.5)
       drb
       i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
       minitest (>= 5.1)
-      mutex_m
-      tzinfo (~> 2.0)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
     appraisal (2.5.0)
       bundler
       rake
       thor (>= 0.14.0)
-    base64 (0.1.1)
-    bigdecimal (3.1.4)
-    concurrent-ruby (1.2.2)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
+    concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     diff-lcs (1.5.0)
-    drb (2.1.1)
-      ruby2_keywords
-    i18n (1.14.1)
+    drb (2.2.1)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.20.0)
-    mutex_m (0.1.2)
+    logger (1.6.1)
+    minitest (5.25.1)
     rake (13.0.6)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
@@ -48,7 +48,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.1)
-    ruby2_keywords (0.0.5)
+    securerandom (0.3.1)
     thor (1.2.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
diff --git a/gemfiles/rails_5.2.gemfile.lock b/gemfiles/rails_5.2.gemfile.lock
index 0f77e9e..f6b7fc8 100644
--- a/gemfiles/rails_5.2.gemfile.lock
+++ b/gemfiles/rails_5.2.gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: ..
   specs:
     nested_record (1.1.1)
-      activemodel (> 5.2, < 7.2)
+      activemodel (> 5.2, < 8.0)
 
 GEM
   remote: https://rubygems.org/
@@ -18,26 +18,26 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    concurrent-ruby (1.2.2)
-    diff-lcs (1.5.0)
-    i18n (1.14.1)
+    concurrent-ruby (1.3.4)
+    diff-lcs (1.5.1)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.20.0)
-    rake (13.0.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
+    minitest (5.25.1)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.6)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.1)
-    thor (1.3.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    thor (1.3.2)
     thread_safe (0.3.6)
     tzinfo (1.2.11)
       thread_safe (~> 0.1)
diff --git a/gemfiles/rails_6.0.gemfile.lock b/gemfiles/rails_6.0.gemfile.lock
index 63f2bb0..69c4a20 100644
--- a/gemfiles/rails_6.0.gemfile.lock
+++ b/gemfiles/rails_6.0.gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: ..
   specs:
     nested_record (1.1.1)
-      activemodel (> 5.2, < 7.2)
+      activemodel (> 5.2, < 8.0)
 
 GEM
   remote: https://rubygems.org/
@@ -19,30 +19,30 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    concurrent-ruby (1.2.2)
-    diff-lcs (1.5.0)
-    i18n (1.14.1)
+    concurrent-ruby (1.3.4)
+    diff-lcs (1.5.1)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.20.0)
-    rake (13.0.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
+    minitest (5.25.1)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.6)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.1)
-    thor (1.3.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    thor (1.3.2)
     thread_safe (0.3.6)
     tzinfo (1.2.11)
       thread_safe (~> 0.1)
-    zeitwerk (2.6.12)
+    zeitwerk (2.6.18)
 
 PLATFORMS
   ruby
@@ -56,4 +56,4 @@ DEPENDENCIES
   rspec (~> 3.0)
 
 BUNDLED WITH
-  2.4.20
+   2.5.5
diff --git a/gemfiles/rails_6.1.gemfile.lock b/gemfiles/rails_6.1.gemfile.lock
index f757170..3df24e3 100644
--- a/gemfiles/rails_6.1.gemfile.lock
+++ b/gemfiles/rails_6.1.gemfile.lock
@@ -2,14 +2,14 @@ PATH
   remote: ..
   specs:
     nested_record (1.1.1)
-      activemodel (> 5.2, < 7.2)
+      activemodel (> 5.2, < 8.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (6.1.7.6)
-      activesupport (= 6.1.7.6)
-    activesupport (6.1.7.6)
+    activemodel (6.1.7.8)
+      activesupport (= 6.1.7.8)
+    activesupport (6.1.7.8)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -19,29 +19,29 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    concurrent-ruby (1.2.2)
-    diff-lcs (1.5.0)
-    i18n (1.14.1)
+    concurrent-ruby (1.3.4)
+    diff-lcs (1.5.1)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.20.0)
-    rake (13.0.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
+    minitest (5.25.1)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.6)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.1)
-    thor (1.3.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    thor (1.3.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    zeitwerk (2.6.12)
+    zeitwerk (2.6.18)
 
 PLATFORMS
   ruby
@@ -55,4 +55,4 @@ DEPENDENCIES
   rspec (~> 3.0)
 
 BUNDLED WITH
-  2.4.20
+   2.5.5
diff --git a/gemfiles/rails_7.0.gemfile b/gemfiles/rails_7.0.gemfile
index 96c12d3..8864094 100644
--- a/gemfiles/rails_7.0.gemfile
+++ b/gemfiles/rails_7.0.gemfile
@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "activemodel", "~> 7.0.8"
+gem "activemodel", "~> 7.0.8.4"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_7.0.gemfile.lock b/gemfiles/rails_7.0.gemfile.lock
index c87ff95..9d075f5 100644
--- a/gemfiles/rails_7.0.gemfile.lock
+++ b/gemfiles/rails_7.0.gemfile.lock
@@ -2,14 +2,14 @@ PATH
   remote: ..
   specs:
     nested_record (1.1.1)
-      activemodel (> 5.2, < 7.2)
+      activemodel (> 5.2, < 8.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (7.0.8)
-      activesupport (= 7.0.8)
-    activesupport (7.0.8)
+    activemodel (7.0.8.4)
+      activesupport (= 7.0.8.4)
+    activesupport (7.0.8.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -18,26 +18,26 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    concurrent-ruby (1.2.2)
-    diff-lcs (1.5.0)
-    i18n (1.14.1)
+    concurrent-ruby (1.3.4)
+    diff-lcs (1.5.1)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.20.0)
-    rake (13.0.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
+    minitest (5.25.1)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.6)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.1)
-    thor (1.3.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    thor (1.3.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
 
@@ -45,7 +45,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  activemodel (~> 7.0.8)
+  activemodel (~> 7.0.8.4)
   appraisal
   bundler (>= 2)
   nested_record!
@@ -53,4 +53,4 @@ DEPENDENCIES
   rspec (~> 3.0)
 
 BUNDLED WITH
-  2.4.20
+   2.5.5
diff --git a/gemfiles/rails_7.1.gemfile b/gemfiles/rails_7.1.gemfile
index 17dbc1a..b515993 100644
--- a/gemfiles/rails_7.1.gemfile
+++ b/gemfiles/rails_7.1.gemfile
@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "activemodel", "~> 7.1.1"
+gem "activemodel", "~> 7.1.4"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_7.1.gemfile.lock b/gemfiles/rails_7.1.gemfile.lock
index 98e737c..e692db5 100644
--- a/gemfiles/rails_7.1.gemfile.lock
+++ b/gemfiles/rails_7.1.gemfile.lock
@@ -2,14 +2,14 @@ PATH
   remote: ..
   specs:
     nested_record (1.1.1)
-      activemodel (> 5.2, < 7.2)
+      activemodel (> 5.2, < 8.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (7.1.1)
-      activesupport (= 7.1.1)
-    activesupport (7.1.1)
+    activemodel (7.1.4)
+      activesupport (= 7.1.4)
+    activesupport (7.1.4)
       base64
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
@@ -23,33 +23,31 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    base64 (0.1.1)
-    bigdecimal (3.1.4)
-    concurrent-ruby (1.2.2)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
+    concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
-    diff-lcs (1.5.0)
-    drb (2.1.1)
-      ruby2_keywords
-    i18n (1.14.1)
+    diff-lcs (1.5.1)
+    drb (2.2.1)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    minitest (5.20.0)
-    mutex_m (0.1.2)
-    rake (13.0.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
+    minitest (5.25.1)
+    mutex_m (0.2.0)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.6)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.1)
-    ruby2_keywords (0.0.5)
-    thor (1.3.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    thor (1.3.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
 
@@ -57,7 +55,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  activemodel (~> 7.1.1)
+  activemodel (~> 7.1.4)
   appraisal
   bundler (>= 2)
   nested_record!
@@ -65,4 +63,4 @@ DEPENDENCIES
   rspec (~> 3.0)
 
 BUNDLED WITH
-  2.4.20
+   2.5.5
diff --git a/gemfiles/rails_7.2.gemfile b/gemfiles/rails_7.2.gemfile
new file mode 100644
index 0000000..9aef0bb
--- /dev/null
+++ b/gemfiles/rails_7.2.gemfile
@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "activemodel", "~> 7.2.1"
+
+gemspec path: "../"
diff --git a/gemfiles/rails_7.2.gemfile.lock b/gemfiles/rails_7.2.gemfile.lock
new file mode 100644
index 0000000..7c66a31
--- /dev/null
+++ b/gemfiles/rails_7.2.gemfile.lock
@@ -0,0 +1,69 @@
+PATH
+  remote: ..
+  specs:
+    nested_record (1.1.1)
+      activemodel (> 5.2, < 8.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (7.2.1)
+      activesupport (= 7.2.1)
+    activesupport (7.2.1)
+      base64
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
+    concurrent-ruby (1.3.4)
+    connection_pool (2.4.1)
+    diff-lcs (1.5.1)
+    drb (2.2.1)
+    i18n (1.14.5)
+      concurrent-ruby (~> 1.0)
+    logger (1.6.1)
+    minitest (5.25.1)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    securerandom (0.3.1)
+    thor (1.3.2)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+
+PLATFORMS
+  arm64-darwin-23
+  ruby
+
+DEPENDENCIES
+  activemodel (~> 7.2.1)
+  appraisal
+  bundler (>= 2)
+  nested_record!
+  rake (~> 13.0)
+  rspec (~> 3.0)
+
+BUNDLED WITH
+   2.5.5
diff --git a/lib/nested_record/version.rb b/lib/nested_record/version.rb
index 16ce093..8b778c1 100644
--- a/lib/nested_record/version.rb
+++ b/lib/nested_record/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module NestedRecord
-  VERSION = '1.1.1'
+  VERSION = '1.1.2'
 end
diff --git a/nested_record.gemspec b/nested_record.gemspec
index 5dce119..08721a7 100644
--- a/nested_record.gemspec
+++ b/nested_record.gemspec
@@ -27,5 +27,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "appraisal"
 
-  spec.add_dependency "activemodel", "> 5.2", "< 7.2"
+  spec.add_dependency "activemodel", "> 5.2", "< 8.0"
 end