diff --git a/requirements.txt b/requirements.txt
index 1d512a0..60dee97 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@
 netaddr>=0.7.12
 testrepository>=0.0.18
 pyOpenSSL>=0.11
-oslo.concurrency>=2.0.0 # Apache-2.0
+oslo.concurrency>=2.1.0 # Apache-2.0
 oslo.config>=1.11.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=1.2.0 # Apache-2.0