diff --git a/instrumentation/active_support/lib/opentelemetry/instrumentation/active_support/span_subscriber.rb b/instrumentation/active_support/lib/opentelemetry/instrumentation/active_support/span_subscriber.rb
index c2a376ba3..5fd8c5cc2 100644
--- a/instrumentation/active_support/lib/opentelemetry/instrumentation/active_support/span_subscriber.rb
+++ b/instrumentation/active_support/lib/opentelemetry/instrumentation/active_support/span_subscriber.rb
@@ -30,7 +30,7 @@ def self.subscribe(
 
         subscriber_object = ::ActiveSupport::Notifications.subscribe(pattern, subscriber)
 
-        if Gem::Version.new(::Rails.version) < Gem::Version.new('7.2')
+        if ::ActiveSupport::Notifications.notifier.respond_to?(:synchronize)
           ::ActiveSupport::Notifications.notifier.synchronize do
             subscribers = ::ActiveSupport::Notifications.notifier.instance_variable_get(:@string_subscribers)[pattern]