diff --git a/tasks/NDH/requirements.txt b/tasks/NDH/requirements.txt
index 2bb72e4..00e4c7f 100644
--- a/tasks/NDH/requirements.txt
+++ b/tasks/NDH/requirements.txt
@@ -10,7 +10,7 @@ Pillow==4.3.0
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.3
-PyYAML==5.1
+PyYAML==5.4
 six==1.11.0
 subprocess32==3.2.7
 torch==1.0.0