diff --git a/requirements.txt b/requirements.txt
index 8da7e14..42e7ff1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pyparsing==2.4.5
 pyserial==3.4
 pysmbus==0.1
 python-dateutil==2.8.1
-PyYAML==5.1.2
+PyYAML==5.4
 Represent==1.6.0
 scipy==1.3.2
 sgp4==1.4