diff --git a/ci/docs.yml b/ci/docs.yml
index 1ad62512..50bf9882 100644
--- a/ci/docs.yml
+++ b/ci/docs.yml
@@ -16,7 +16,7 @@ dependencies:
   - myst-parser
   - myst-nb
   - sphinx
-  - furo
+  - furo>=2024.08
   - ipykernel
   - jupyter
   - sphinx-codeautolink
diff --git a/flox/__init__.py b/flox/__init__.py
index 2ca5fa5b..839bfb07 100644
--- a/flox/__init__.py
+++ b/flox/__init__.py
@@ -2,7 +2,7 @@
 # flake8: noqa
 """Top-level module for flox ."""
 from . import cache
-from .aggregations import Aggregation  # noqa
+from .aggregations import Aggregation, Scan  # noqa
 from .core import groupby_reduce, groupby_scan, rechunk_for_blockwise, rechunk_for_cohorts  # noqa
 
 
diff --git a/readthedocs.yml b/readthedocs.yml
index 25699dd0..51b6b6b1 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -1,9 +1,9 @@
 version: 2
 
 build:
-  os: "ubuntu-20.04"
+  os: "ubuntu-lts-latest"
   tools:
-    python: "mambaforge-4.10"
+    python: "mambaforge-latest"
 
 conda:
   environment: ci/docs.yml