diff --git a/requirements.txt b/requirements.txt
index 75b56e8..5c7555c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ python-dateutil==2.8.0
 python-qt-binding==0.3.4
 pytz==2019.1
 PyWavelets==1.0.3
-PyYAML==5.1.1
+PyYAML==5.4
 qt-dotgraph==0.3.11
 qt-gui==0.3.11
 qt-gui-cpp==0.3.11