diff --git a/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec b/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
index a0149847b..874f474e9 100644
--- a/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
+++ b/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 3.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
-  spec.add_dependency 'opentelemetry-instrumentation-action_mailer', '~> 0.2.0'
+  spec.add_dependency 'opentelemetry-instrumentation-action_mailer', '~> 0.3.0'
   spec.add_dependency 'opentelemetry-instrumentation-action_pack', '~> 0.10.0'
   spec.add_dependency 'opentelemetry-instrumentation-action_view', '~> 0.8.0'
   spec.add_dependency 'opentelemetry-instrumentation-active_job', '~> 0.7.0'