diff --git a/requirements.txt b/requirements.txt
index 4f72146..364419f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -98,7 +98,7 @@ python-dotenv==0.10.3
 pytz==2020.1
 PyWavelets==1.1.1
 pywinpty==0.5.7
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==18.1.1
 requests==2.22.0
 requests-oauthlib==1.3.0