diff --git a/requirements.txt b/requirements.txt
index 55259e2b7..a6346deb5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ pyparsing==2.4.7
 pyproj==3.0.0.post1
 python-dateutil==2.8.1
 pytz==2020.4
-PyYAML==5.3.1
+PyYAML==5.4
 Shapely==1.7.1
 six==1.15.0
 tornado==6.1