diff --git a/lib/couchbase-orm/attributes/dynamic.rb b/lib/couchbase-orm/attributes/dynamic.rb
index 35863bfa..5b8ab6e3 100644
--- a/lib/couchbase-orm/attributes/dynamic.rb
+++ b/lib/couchbase-orm/attributes/dynamic.rb
@@ -31,13 +31,42 @@ def _assign_attribute(name, value)
       if responds
         public_send(name.writer, value)
       else
-        type = value.class.to_s.underscore.to_sym
-        type = :hash if type == :"active_support/hash_with_indifferent_access"
-        type = ActiveModel::Type.lookup(type)
+        type = define_attribute_type(value)
+        type = if type == :array
+                 item_type = define_attribute_type(value.first)
+                 ActiveModel::Type.lookup(type, type: item_type)
+               else
+                 ActiveModel::Type.lookup(type)
+               end
         @attributes[name] = ActiveModel::Attribute.from_database(name, value, type)
       end
     end
 
+    # Determines the attribute type based on the value provided.
+    #
+    # This method converts the class of the value to a symbol and handles special cases
+    # for `ActiveSupport::HashWithIndifferentAccess`, booleans, and nil values.
+    #
+    # @param [Object] value The value whose type needs to be determined.
+    # @return [Symbol] The determined type of the attribute.
+    #
+    # @example Determining types of various values
+    #   define_attribute_type(123)                                   # => :integer
+    #   define_attribute_type("Hello")                               # => :string
+    #   define_attribute_type(true)                                  # => :boolean
+    #   define_attribute_type(false)                                 # => :boolean
+    #   define_attribute_type(nil)                                   # => :raw
+    #   define_attribute_type(ActiveSupport::HashWithIndifferentAccess.new) # => :hash
+    def define_attribute_type(value)
+      type = value.class.to_s.underscore.to_sym
+      return :hash if type == :"active_support/hash_with_indifferent_access"
+      return :boolean if type == :true_class
+      return :boolean if type == :false_class
+      return :raw if type == :nil_class
+
+      type
+    end
+
       # Define a reader method  for a dynamic attribute.
       #
       # @example Define a reader method.
diff --git a/lib/couchbase-orm/types.rb b/lib/couchbase-orm/types.rb
index 9909aae6..c0d01714 100644
--- a/lib/couchbase-orm/types.rb
+++ b/lib/couchbase-orm/types.rb
@@ -7,6 +7,7 @@
 require 'couchbase-orm/types/nested'
 require 'couchbase-orm/types/encrypted'
 require 'couchbase-orm/types/hash'
+require 'couchbase-orm/types/raw'
 
 if ActiveModel::VERSION::MAJOR <= 6
   # In Rails 5, the type system cannot allow overriding the default types
@@ -22,3 +23,4 @@
 ActiveModel::Type.register(:nested, CouchbaseOrm::Types::Nested)
 ActiveModel::Type.register(:encrypted, CouchbaseOrm::Types::Encrypted)
 ActiveModel::Type.register(:hash, CouchbaseOrm::Types::Hash)
+ActiveModel::Type.register(:raw, CouchbaseOrm::Types::Raw)
diff --git a/lib/couchbase-orm/types/raw.rb b/lib/couchbase-orm/types/raw.rb
new file mode 100644
index 00000000..fe4e15f0
--- /dev/null
+++ b/lib/couchbase-orm/types/raw.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module CouchbaseOrm
+  module Types
+    class Raw < ActiveModel::Type::Value
+      def cast(values)
+        values
+      end
+
+      def serialize(values)
+        values
+      end
+    end
+  end
+end
diff --git a/spec/attribute_dynamic_spec.rb b/spec/attribute_dynamic_spec.rb
index e90c6333..01fef1fb 100644
--- a/spec/attribute_dynamic_spec.rb
+++ b/spec/attribute_dynamic_spec.rb
@@ -24,5 +24,79 @@ class AttributeDynamicTest < CouchbaseOrm::Base
       expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: 2)
       dynamic.destroy
     end
+
+    context 'with integer' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: 2)
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: 2)
+        dynamic.destroy
+      end
+    end
+
+    context 'with decimal' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: 2.0)
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: 2.0)
+        dynamic.destroy
+      end
+    end
+
+    context 'with true_class' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: true)
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: true)
+        dynamic.destroy
+      end
+    end
+
+    context 'with false_class' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: false)
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: false)
+        dynamic.destroy
+      end
+    end
+
+    context 'with string' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: 'a string')
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: 'a string')
+        dynamic.destroy
+      end
+    end
+
+    context 'with hash' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: { a: 'hash' })
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: { a: 'hash' })
+        dynamic.destroy
+      end
+    end
+
+    context 'with nil' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: nil)
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: nil)
+        dynamic.destroy
+      end
+    end
+
+    context 'with array' do
+      it 'accepts unknown attribute from Coucbbase' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: [{ a: 'hash' }])
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: [{ a: 'hash' }])
+        dynamic.destroy
+      end
+    end
+
+    context 'with raw' do
+      it 'not accepts to change string to number' do
+        dynamic = AttributeDynamicTest.create!(name: 'joe', new_attribute: 'an string')
+        dynamic.new_attribute = 1
+        dynamic.save!
+        expect(AttributeDynamicTest.find_by_id(dynamic.id)).to have_attributes(new_attribute: '1')
+        dynamic.destroy!
+      end
+    end
   end
 end