diff --git a/requirements.txt b/requirements.txt
index 54917d0..82d6f29 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ pycodestyle==2.6.0
 pyparsing==2.4.7
 pytest==5.4.2
 python-dateutil==2.8.1
-PyYAML==5.3.1
+PyYAML==5.4
 rpi-rfm69==0.2.1b0
 RPi.GPIO==0.7.0
 rsa==3.4.2