diff --git a/requirements.txt b/requirements.txt
index 7b5f838..1b94aa6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@ docutils==0.12
 jmespath==0.9.0
 pyaml==15.8.2
 python-dateutil==2.5.3
-PyYAML==5.1
+PyYAML==5.1.1
 six==1.10.0