diff --git a/requirements.txt b/requirements.txt
index 01fc7a0..fa96d44 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ nose-cov==1.6
 pbr==1.8.1
 pyparsing==2.0.6
 python-coveralls==2.6.0
-PyYAML==3.11
+PyYAML==5.4
 requests==2.9.1
 sh==1.11
 six==1.10.0