diff --git a/Python3.md b/Python3.md
index 98130d2..c5eee54 100644
--- a/Python3.md
+++ b/Python3.md
@@ -39,7 +39,7 @@ We use [tox](https://tox.readthedocs.io/en/latest/) to standardize environments
 | `frontends` | **todo** |  |  |
 | ~~`hashtree`~~ | ~~done~~ |  |  |
 | `history` | **todo** |  |  |
-| `immutable`‡ | **doing** |  | pretty sure `offloaded` is all that remains |
+| `immutable`‡ | **doing** |  | `checker`, `offloaded`, and perhaps others remains |
 | ~~`interfaces`~~ | ~~done~~ |  |  |
 | `introducer` | **doing** | Itamar |  |
 | ~~`monitor`~~ | ~~done~~ |  |  |