diff --git a/requirements.txt b/requirements.txt
index bb5c73b..48267b4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ pyparsing==2.4.2
 python-dateutil==2.8.0
 pytz==2019.2
 pyxattr==0.6.1
-PyYAML==5.1.1
+PyYAML==5.4
 retrying==1.3.3
 scipy==1.3.1
 simplejson==3.16.0