diff --git a/hemp/requirements.txt b/hemp/requirements.txt
index 32e8156..f64d7ec 100644
--- a/hemp/requirements.txt
+++ b/hemp/requirements.txt
@@ -9,5 +9,5 @@ paramiko==2.4.2
 pyasn1==0.4.5
 pycparser==2.19
 PyNaCl==1.3.0
-PyYAML==3.13
+PyYAML==5.4
 six==1.12.0