diff --git a/manifests/init.pp b/manifests/init.pp
index 1494c9ec..9dd459d8 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -61,16 +61,6 @@
 #   every 30 seconds.
 #   Defaults to $facts['os_service_default']
 #
-# [*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 $facts['os_service_default']
-#
 # [*rabbit_qos_prefetch_count*]
 #   (Optional) Specifies the number of messages to prefetch.
 #   Defaults to $facts['os_service_default']
@@ -183,6 +173,18 @@
 #   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'],
@@ -194,7 +196,6 @@ class aodh (
   $rabbit_use_ssl                     = $facts['os_service_default'],
   $rabbit_heartbeat_timeout_threshold = $facts['os_service_default'],
   $rabbit_heartbeat_rate              = $facts['os_service_default'],
-  $rabbit_heartbeat_in_pthread        = $facts['os_service_default'],
   $rabbit_qos_prefetch_count          = $facts['os_service_default'],
   $rabbit_ha_queues                   = $facts['os_service_default'],
   $rabbit_quorum_queue                = $facts['os_service_default'],
@@ -220,6 +221,8 @@ class aodh (
   $notification_topics                = $facts['os_service_default'],
   $notification_retry                 = $facts['os_service_default'],
   Boolean $purge_config               = false,
+  # DEPRECATED PARAMETERS
+  $rabbit_heartbeat_in_pthread        = undef,
 ) inherits aodh::params {
 
   include aodh::deps
diff --git a/releasenotes/notes/deprecate-rabbit_heartbeat_in_pthread-31d669acaccf209c.yaml b/releasenotes/notes/deprecate-rabbit_heartbeat_in_pthread-31d669acaccf209c.yaml
new file mode 100644
index 00000000..8f7425fa
--- /dev/null
+++ b/releasenotes/notes/deprecate-rabbit_heartbeat_in_pthread-31d669acaccf209c.yaml
@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    The ``aodh::rabbit_heartbeat_in_pthread`` parameter has been deprecated
+    and will be removed in the future release.