diff --git a/requirements.txt b/requirements.txt
index 8a7d2014..f7190e5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ networkx>=1.10 # BSD
 contextlib2>=0.4.0 # PSF License
 
 # Used for backend storage engine loading.
-stevedore>=1.5.0 # Apache-2.0
+stevedore>=1.9.0 # Apache-2.0
 
 # Backport for concurrent.futures which exists in 3.2+
 futures>=3.0;python_version=='2.7' or python_version=='2.6' # BSD