diff --git a/requirements.txt b/requirements.txt
index 4d1d2b8f34..a9872e0398 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,6 @@ keystonemiddleware>=7.0.0 # Apache-2.0
 bcrypt>=3.1.3 # Apache-2.0
 scrypt>=0.8.0 # BSD
 oslo.cache>=1.26.0 # Apache-2.0
-oslo.concurrency>=3.26.0 # Apache-2.0
 oslo.config>=5.2.0 # Apache-2.0
 oslo.context>=2.22.0 # Apache-2.0
 oslo.messaging>=5.29.0 # Apache-2.0