diff --git a/requirements.txt b/requirements.txt
index 3834631..b47a54e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ ptyprocess==0.6.0
 pycparser==2.19
 PyNaCl==1.3.0
 pyserial==3.4
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 scp==0.13.2
 six==1.12.0