diff --git a/gitlab/mixins.py b/gitlab/mixins.py
index 3dae155c8..f35c1348b 100644
--- a/gitlab/mixins.py
+++ b/gitlab/mixins.py
@@ -965,7 +965,7 @@ def all(self, **kwargs: Any) -> List[base.RESTObject]:
 
         warnings.warn(
             "The all() method for this object is deprecated "
-            "and will be removed in a future version.",
+            "and will be removed in a future version. Use .members_all.list(all=True), instead.",
             DeprecationWarning,
         )
         path = "%s/all" % self.path