diff --git a/requirements.txt b/requirements.txt
index 52164822cb..f173d670ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ python-swiftclient>=2.2.0
 stevedore>=1.5.0 # Apache-2.0
 pysendfile>=2.0.0
 websockify<0.7,>=0.6.0
-oslo.concurrency>=2.1.0 # Apache-2.0
+oslo.concurrency>=2.3.0 # Apache-2.0
 oslo.config>=1.11.0 # Apache-2.0
 oslo.context>=0.2.0 # Apache-2.0
 oslo.db>=1.12.0 # Apache-2.0