diff --git a/test/units/requirements.txt b/test/units/requirements.txt
index f25bf30a687..1822adaa1f9 100644
--- a/test/units/requirements.txt
+++ b/test/units/requirements.txt
@@ -1,4 +1,4 @@
-bcrypt ; python_version >= '3.8'  # controller only
-passlib ; python_version >= '3.8'  # controller only
-pexpect ; python_version >= '3.8'  # controller only
-pywinrm ; python_version >= '3.8'  # controller only
+bcrypt ; python_version >= '3.9'  # controller only
+passlib ; python_version >= '3.9'  # controller only
+pexpect ; python_version >= '3.9'  # controller only
+pywinrm ; python_version >= '3.9'  # controller only