Gemfile in netsuite-0.9.0 vs Gemfile in netsuite-0.9.1

@@ -9,5 +9,12 @@
 
 if ENV.fetch('BUNDLE_TZINFO', 'false') == 'true'
   # optional dependency for more accurate timezone conversion
   gem 'tzinfo', '>= 1.2.5'
 end
+
+if RUBY_VERSION >= '3.1.0'
+  # Savon v2.13 adds a dependency on mail, which has an implicit dependency on
+  # net-smtp. Ruby 3.1 removed net-smtp as a default gem. mail v2.8.0.rc1 is the
+  # first to make that dependency explicit to support Ruby 3.1.
+  gem 'mail', '>= 2.8.0.rc1'
+end