diff --git a/requirements.txt b/requirements.txt
index c8afd6763..9a919621c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,5 +22,5 @@ oslo.middleware>=3.31.0 # Apache-2.0
 oslo.upgradecheck>=1.3.0 # Apache-2.0
 # NOTE(efried): Sync lower-constraints.txt for os-traits & os-resource-classes.
 os-resource-classes>=1.1.0 # Apache-2.0
-os-traits>=3.0.0 # Apache-2.0
+os-traits>=3.1.0 # Apache-2.0
 microversion-parse>=0.2.1 # Apache-2.0