diff --git a/gso/settings.py b/gso/settings.py
index 4c653798e543db84891370eb5f8de7913e6efad0..0e06192c56c6f57c1ac012984990787166869b18 100644
--- a/gso/settings.py
+++ b/gso/settings.py
@@ -136,9 +136,6 @@ class ProvisioningProxyParams(BaseSettings):
 
     scheme: str
     api_base: str
-    #:  .. deprecated:: 0.1
-    #:     Not used anymore, may be left out from config file.
-    auth: str | None = None
     api_version: int