diff --git a/requirements.txt b/requirements.txt
index 01c66724..f3323e38 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ oslo.i18n>=3.15.3 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
 
 # for the routing notifier
-PyYAML>=3.10 # MIT
+PyYAML>=3.12 # MIT
 
 lxml!=3.7.0,>=3.4.1 # BSD
 suds-jurko>=0.6 # LGPLv3+