diff --git a/requirements.txt b/requirements.txt
index 50b8e276..ea6ba37e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ jsonschema!=2.5.0,<3.0.0,>=2.0.0
 keystonemiddleware>=1.5.0
 netaddr>=0.7.12
 oslo.config>=1.11.0 # Apache-2.0
-oslo.concurrency>=2.0.0 # Apache-2.0
+oslo.concurrency>=2.1.0 # Apache-2.0
 oslo.messaging!=1.12.0,>=1.8.0 # Apache-2.0
 oslo.middleware!=2.0.0,>=1.2.0 # Apache-2.0
 oslo.log>=1.2.0 # Apache-2.0