diff --git a/requirements.txt b/requirements.txt
index d9b196e..7870b3b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,5 @@ asyncssh==1.15.1
 cffi==1.12.1
 cryptography==2.5
 pycparser==2.19
-PyYAML==5.1.1
+PyYAML==5.4
 six==1.12.0