diff --git a/requirements.txt b/requirements.txt
index fad4d26..cf59eb4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ Pygments==2.4.2
 python-dateutil==2.8.0
 python-decouple==3.1
 pytz==2019.1
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 retrying==1.3.3
 six==1.12.0