diff --git a/requirements.txt b/requirements.txt
index 471f27f..d320088 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ jsonpickle==0.9.5
 jsonschema==2.6.0
 nomenclate==2.4.4
 nose==1.3.7
-PyYAML==4.2b4
+PyYAML==5.4
 six==1.11.0
 structlog==17.2.0
 unittest2==1.1.0