diff --git a/requirements.txt b/requirements.txt
index 692d8b78e..1764e335b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 setuptools<=65.7.0
 six>=1.9.0 # MIT
-PyYAML>=3.10.0 # MIT
+PyYAML>=3.13 # MIT
 pbr>=1.8 # Apache-2.0
 stevedore>=1.17.1,<2; python_version < '3.0'  # Apache-2.0
 stevedore>=1.17.1; python_version >= '3.0'  # Apache-2.0