diff --git a/requirements.txt b/requirements.txt
index 90adaff..ba31e66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -149,7 +149,7 @@ python-dateutil==2.8.0
 pytorch-transformers==1.2.0
 pytz==2019.2
 PyWavelets==1.0.3
-PyYAML==5.1.2
+PyYAML==5.4
 pyzmq==18.1.0
 QtAwesome==0.5.7
 qtconsole==4.5.5