diff --git a/requirements.txt b/requirements.txt
index 716ec0e..2764a95 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -77,7 +77,7 @@ PySocks==1.7.0
 python-dateutil==2.8.0
 python-docx==0.8.10
 pytz==2019.1
-PyYAML==5.1
+PyYAML==5.4
 pyzmq==18.0.0
 qtconsole==4.5.1
 QtPy==1.7.1