diff --git a/requirements.txt b/requirements.txt
index 8ffe446..09b69df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ numpy==1.14.5
 Pillow==5.1.0
 python-dateutil==2.7.3
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 requests==2.19.1
 requests-file==1.4.3
 scipy==1.1.0