diff --git a/SmartImplicitHub/requirements.txt b/SmartImplicitHub/requirements.txt
index 5e3fd8f..dc8fd2b 100644
--- a/SmartImplicitHub/requirements.txt
+++ b/SmartImplicitHub/requirements.txt
@@ -13,7 +13,7 @@ pyrsistent==0.15.2
 python-dateutil==2.8.0
 python-osc==1.7.0
 pytz==2019.1
-PyYAML==5.1.1
+PyYAML==5.4
 scipy==1.3.0
 six==1.12.0
 zeroconf==0.23.0