diff --git a/schedule-backend/requirements.txt b/schedule-backend/requirements.txt
index bc8a2f2..caeb3ce 100644
--- a/schedule-backend/requirements.txt
+++ b/schedule-backend/requirements.txt
@@ -58,7 +58,7 @@ pyrsistent==0.15.5
 pyserial==3.4
 python-apt==2.0.0
 python-debian===0.1.36ubuntu1
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.22.0
 requests-unixsocket==0.2.0
 SecretStorage==2.3.1