diff --git a/mistral/services/action_heartbeat_checker.py b/mistral/services/action_heartbeat_checker.py
index 80e3f3a65..b44dd121f 100644
--- a/mistral/services/action_heartbeat_checker.py
+++ b/mistral/services/action_heartbeat_checker.py
@@ -13,7 +13,7 @@
 #    limitations under the License.
 
 import datetime
-import eventlet
+import threading
 import time
 
 from mistral import context as auth_ctx
@@ -137,7 +137,7 @@ def start():
 
     _stopped = False
 
-    eventlet.spawn_after(wait_time, _loop)
+    threading.Timer(wait_time, _loop).start()
 
 
 def stop(graceful=False):
diff --git a/mistral/services/action_heartbeat_sender.py b/mistral/services/action_heartbeat_sender.py
index 62e765e9e..694c3d915 100644
--- a/mistral/services/action_heartbeat_sender.py
+++ b/mistral/services/action_heartbeat_sender.py
@@ -12,7 +12,7 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-import eventlet
+import threading
 import time
 
 from oslo_config import cfg
@@ -101,7 +101,7 @@ def start():
 
     _stopped = False
 
-    eventlet.spawn(_loop)
+    threading.Thread(target=_loop).start()
 
 
 def stop(graceful=False):