diff --git a/build/requirements/requirements.txt b/build/requirements/requirements.txt
index 47a980d1f..c650e8ac5 100644
--- a/build/requirements/requirements.txt
+++ b/build/requirements/requirements.txt
@@ -15,7 +15,7 @@ netmiko
 passlib
 psutil
 redis
-ruamel.yaml
+ruamel.yaml==0.17.21
 sqlalchemy
 watchdog
 wtforms