diff --git a/requirements.txt b/requirements.txt
index 37caf44b36..447325b1fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ httplib2>=0.7.5
 iso8601>=0.1.9
 kombu>=3.0.7
 netaddr>=0.7.12
-oslo.concurrency>=1.8.0         # Apache-2.0
+oslo.concurrency>=2.0.0         # Apache-2.0
 oslo.config>=1.11.0  # Apache-2.0
 oslo.i18n>=1.5.0  # Apache-2.0
 oslo.serialization>=1.4.0               # Apache-2.0