diff --git a/requirements.txt b/requirements.txt
index 81b35a482..cfde43e0f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 pbr>=1.6 # Apache-2.0
 Babel>=1.3 # BSD
 eventlet!=0.18.3,>=0.18.2 # MIT
-oslo.concurrency>=2.3.0 # Apache-2.0
+oslo.concurrency>=3.5.0 # Apache-2.0
 oslo.log>=1.14.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0