diff --git a/requirements.txt b/requirements.txt
index 532f6c7..d652568 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ Pillow==3.4.2
 psycopg2==2.6.2
 python-dateutil==2.6.0
 pytz==2016.10
-PyYAML==3.12
+PyYAML==5.4
 requests==2.12.4
 scipy==1.0.1
 six==1.10.0