diff --git a/requirements.txt b/requirements.txt
index 27a73ae5..757fff87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ oslo.utils>=3.33.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 keystoneauth1>=3.4.0 # Apache-2.0
-PyYAML>=3.10 # MIT
+PyYAML>=3.12 # MIT
 requests>=2.14.2 # Apache-2.0
 six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0