diff --git a/barbican/cmd/keystone_listener.py b/barbican/cmd/keystone_listener.py
index b6c25716d..10975f12c 100644
--- a/barbican/cmd/keystone_listener.py
+++ b/barbican/cmd/keystone_listener.py
@@ -27,13 +27,6 @@ import sys
 # To have remote debugging, thread module needs to be disabled.
 # eventlet.monkey_patch(thread=False)
 eventlet.monkey_patch()
-# Monkey patch the original current_thread to use the up-to-date _active
-# global variable. See https://bugs.launchpad.net/bugs/1863021 and
-# https://github.com/eventlet/eventlet/issues/592
-import __original_module_threading as orig_threading
-import threading  # noqa
-orig_threading.current_thread.__globals__['_active'] = threading._active
-
 
 # 'Borrowed' from the Glance project:
 # If ../barbican/__init__.py exists, add ../ to Python search path, so that
diff --git a/barbican/cmd/retry_scheduler.py b/barbican/cmd/retry_scheduler.py
index edfc93f6a..115cd03bd 100644
--- a/barbican/cmd/retry_scheduler.py
+++ b/barbican/cmd/retry_scheduler.py
@@ -25,12 +25,6 @@ import sys
 
 # Oslo messaging RPC server uses eventlet.
 eventlet.monkey_patch()
-# Monkey patch the original current_thread to use the up-to-date _active
-# global variable. See https://bugs.launchpad.net/bugs/1863021 and
-# https://github.com/eventlet/eventlet/issues/592
-import __original_module_threading as orig_threading
-import threading  # noqa
-orig_threading.current_thread.__globals__['_active'] = threading._active
 
 # 'Borrowed' from the Glance project:
 # If ../barbican/__init__.py exists, add ../ to Python search path, so that
diff --git a/barbican/cmd/worker.py b/barbican/cmd/worker.py
index 59a6449ff..a5d8b6cc4 100644
--- a/barbican/cmd/worker.py
+++ b/barbican/cmd/worker.py
@@ -25,12 +25,6 @@ import sys
 
 # Oslo messaging RPC server uses eventlet.
 eventlet.monkey_patch()
-# Monkey patch the original current_thread to use the up-to-date _active
-# global variable. See https://bugs.launchpad.net/bugs/1863021 and
-# https://github.com/eventlet/eventlet/issues/592
-import __original_module_threading as orig_threading
-import threading  # noqa
-orig_threading.current_thread.__globals__['_active'] = threading._active
 
 # 'Borrowed' from the Glance project:
 # If ../barbican/__init__.py exists, add ../ to Python search path, so that
diff --git a/requirements.txt b/requirements.txt
index 44d7be0d6..66770f941 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 alembic>=0.8.10 # MIT
 cffi>=1.7.0 # MIT
 cryptography>=2.1 # BSD/Apache-2.0
-eventlet>=0.18.2,!=0.18.3,!=0.20.1  # MIT
+eventlet>=0.27.0 # MIT
 jsonschema>=3.2.0 # MIT
 oslo.config>=6.4.0 # Apache-2.0
 oslo.context>=2.22.0 # Apache-2.0