diff --git a/requirements.txt b/requirements.txt
index d3ab33c..a7ccf4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 boltons==18.0.1
 Jinja2==2.11.3
 MarkupSafe==1.1.0
-PyYAML==3.13
+PyYAML==5.4