diff --git a/requirements.txt b/requirements.txt
index 0ed8eefe..684266b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ pyparsing==2.4.6
 python-dateutil==2.8.1
 python-speech-features==0.6
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.0
 requests==2.23.0
 requests-oauthlib==1.3.0