diff --git a/manifests/init.pp b/manifests/init.pp
index 84e2146c..3ee464f4 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -189,18 +189,6 @@
 #   in the aodh config.
 #   Defaults to false.
 #
-# DEPRECATED PARAMETERS
-#
-# [*rabbit_heartbeat_in_pthread*]
-#   (Optional) EXPERIMENTAL: Run the health check heartbeat thread
-#   through a native python thread. By default if this
-#   option isn't provided the  health check heartbeat will
-#   inherit the execution model from the parent process. By
-#   example if the parent process have monkey patched the
-#   stdlib by using eventlet/greenlet then the heartbeat
-#   will be run through a green thread.
-#   Defaults to undef
-#
 class aodh (
   $package_ensure                     = 'present',
   $alarm_history_time_to_live         = $facts['os_service_default'],
@@ -240,8 +228,6 @@ class aodh (
   $notification_retry                 = $facts['os_service_default'],
   $enable_evaluation_results_metrics  = $facts['os_service_default'],
   Boolean $purge_config               = false,
-  # DEPRECATED PARAMETERS
-  $rabbit_heartbeat_in_pthread        = undef,
 ) inherits aodh::params {
   include aodh::deps
   include aodh::db
@@ -260,7 +246,6 @@ class aodh (
     rabbit_ha_queues                => $rabbit_ha_queues,
     heartbeat_timeout_threshold     => $rabbit_heartbeat_timeout_threshold,
     heartbeat_rate                  => $rabbit_heartbeat_rate,
-    heartbeat_in_pthread            => $rabbit_heartbeat_in_pthread,
     rabbit_qos_prefetch_count       => $rabbit_qos_prefetch_count,
     rabbit_use_ssl                  => $rabbit_use_ssl,
     kombu_reconnect_delay           => $kombu_reconnect_delay,
diff --git a/releasenotes/notes/remove-rabbit_heartbeat_in_pthread-abc9689af67a9ed3.yaml b/releasenotes/notes/remove-rabbit_heartbeat_in_pthread-abc9689af67a9ed3.yaml
new file mode 100644
index 00000000..4d7f339b
--- /dev/null
+++ b/releasenotes/notes/remove-rabbit_heartbeat_in_pthread-abc9689af67a9ed3.yaml
@@ -0,0 +1,4 @@
+---
+upgrade:
+  - |
+    The ``aodh::rabbit_heartbeat_in_pthread`` parameter has been removed.
diff --git a/spec/classes/aodh_init_spec.rb b/spec/classes/aodh_init_spec.rb
index f607b752..fe6ad731 100644
--- a/spec/classes/aodh_init_spec.rb
+++ b/spec/classes/aodh_init_spec.rb
@@ -31,7 +31,6 @@ describe 'aodh' do
           :rabbit_use_ssl                  => '<SERVICE DEFAULT>',
           :heartbeat_timeout_threshold     => '<SERVICE DEFAULT>',
           :heartbeat_rate                  => '<SERVICE DEFAULT>',
-          :heartbeat_in_pthread            => nil,
           :rabbit_qos_prefetch_count       => '<SERVICE DEFAULT>',
           :kombu_reconnect_delay           => '<SERVICE DEFAULT>',
           :kombu_failover_strategy         => '<SERVICE DEFAULT>',
@@ -89,7 +88,6 @@ describe 'aodh' do
           :rabbit_use_ssl                     => true,
           :rabbit_heartbeat_timeout_threshold => '60',
           :rabbit_heartbeat_rate              => '10',
-          :rabbit_heartbeat_in_pthread        => true,
           :rabbit_qos_prefetch_count          => 0,
           :kombu_reconnect_delay              => '5.0',
           :amqp_durable_queues                => true,
@@ -133,7 +131,6 @@ describe 'aodh' do
           :rabbit_use_ssl                  => true,
           :heartbeat_timeout_threshold     => '60',
           :heartbeat_rate                  => '10',
-          :heartbeat_in_pthread            => true,
           :rabbit_qos_prefetch_count       => 0,
           :kombu_reconnect_delay           => '5.0',
           :amqp_durable_queues             => true,