diff --git a/requirements.txt b/requirements.txt
index 861a273..099fce5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ pyqtgraph==0.10.0
 pyserial==3.4
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 six==1.14.0
 tornado==6.0.4
 typing-extensions==3.7.4.2