diff --git a/cmd/requirements.txt b/cmd/requirements.txt
index 126668b..f9cdd44 100644
--- a/cmd/requirements.txt
+++ b/cmd/requirements.txt
@@ -19,7 +19,7 @@ pycparser==2.18
 pycryptodome==3.6.6
 pyethash==0.1.27
 pysha3==1.0.2
-PyYAML==4.2b1
+PyYAML==5.4
 repoze.lru==0.7
 requests>=2.20.0
 rlp==0.6.0