diff --git a/wine-quality/resources/requirements.txt b/wine-quality/resources/requirements.txt
index 3ce503a..b92001c 100644
--- a/wine-quality/resources/requirements.txt
+++ b/wine-quality/resources/requirements.txt
@@ -69,7 +69,7 @@ pytest-pylint==0.14.1
 python-dateutil==2.8.0
 pytz==2019.2
 pywinpty==0.5.5
-PyYAML==5.1.2
+PyYAML==5.4
 pyzmq==18.1.0
 qtconsole==4.5.5
 retrying==1.3.3