diff --git a/Gemfile b/Gemfile
index d1f0dac9b2..aaf1e31191 100644
--- a/Gemfile
+++ b/Gemfile
@@ -66,7 +66,7 @@ gem "active_model_serializers", "0.8.4"
 gem 'activerecord-session_store'
 gem 'acts-as-taggable-on', '~> 8.0'
 gem 'angularjs-file-upload-rails', '~> 2.4.1'
-gem 'bigdecimal', '1.4.2' # There are issues using later versions of bigdecimal
+gem 'bigdecimal', '3.0.2'
 gem 'bootsnap', require: false
 gem 'custom_error_message', github: 'jeremydurham/custom-err-msg'
 gem 'dalli'
diff --git a/Gemfile.lock b/Gemfile.lock
index eee883daee..540f957ce0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -157,7 +157,7 @@ GEM
       json (~> 1.4)
       nokogiri (~> 1)
     bcrypt (3.1.16)
-    bigdecimal (1.4.2)
+    bigdecimal (3.0.2)
     bindex (0.8.1)
     bootsnap (1.7.5)
       msgpack (~> 1.0)
@@ -687,7 +687,7 @@ DEPENDENCIES
   awesome_nested_set
   awesome_print
   aws-sdk (= 1.67.0)
-  bigdecimal (= 1.4.2)
+  bigdecimal (= 3.0.2)
   bootsnap
   bugsnag
   bullet
diff --git a/engines/order_management/spec/services/order_management/stock/estimator_spec.rb b/engines/order_management/spec/services/order_management/stock/estimator_spec.rb
index e71d452798..042b4958d2 100644
--- a/engines/order_management/spec/services/order_management/stock/estimator_spec.rb
+++ b/engines/order_management/spec/services/order_management/stock/estimator_spec.rb
@@ -76,7 +76,7 @@ module OrderManagement
 
           allow(subject).to receive(:shipping_methods).and_return(shipping_methods)
 
-          expected_costs = %w[3.00 4.00 5.00].map(&BigDecimal.method(:new))
+          expected_costs = [3.00, 4.00, 5.00]
           expect(subject.shipping_rates(package).map(&:cost)).to eq expected_costs
         end