diff --git a/requirements.txt b/requirements.txt
index 417b777..5ca74fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 os-client-config>=1.22.0  # Apache-2.0
 pbr>=1.8 # Apache-2.0
 shade>=1.13.1
+cryptography>=39.0.1 # not directly required, pinned by Snyk to avoid a vulnerability