diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b758901..60f6de4 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,7 +24,7 @@ repos:
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.8.6
+  rev: v0.9.1
   hooks:
     # Run the linter.
     - id: ruff
diff --git a/.readthedocs.yml b/.readthedocs.yml
index aba41d7..762e7aa 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -17,6 +17,9 @@ build:
 conda:
   environment: docs/environment.yml
 
+sphinx:
+  configuration: docs/conf.py
+
 # Optionally set the version of Python and requirements required to build your docs
 python:
   install:
diff --git a/src/py21cmsense/baseline_filters.py b/src/py21cmsense/baseline_filters.py
index f7b1b8b..2a6fdfc 100644
--- a/src/py21cmsense/baseline_filters.py
+++ b/src/py21cmsense/baseline_filters.py
@@ -58,7 +58,7 @@ class BaselineRange(BaselineFilter):
     def _bl_max_vld(self, att, val):
         if val <= self.bl_min:
             raise ValueError(
-                "bl_max must be greater than bl_min, got " f"bl_min={self.bl_min} and bl_max={val}"
+                f"bl_max must be greater than bl_min, got bl_min={self.bl_min} and bl_max={val}"
             )
 
     def __call__(self, bl: tp.Length) -> bool:
diff --git a/src/py21cmsense/units.py b/src/py21cmsense/units.py
index 1276dae..6a4b56e 100644
--- a/src/py21cmsense/units.py
+++ b/src/py21cmsense/units.py
@@ -44,8 +44,7 @@ def _check_type(self: Any, att: attr.Attribute, val: Any):
             raise UnitError(f"{att.name} must be an astropy Quantity!")
         if val.unit.physical_type != unit:
             raise un.UnitConversionError(
-                f"{att.name} must have physical type of '{unit}'. "
-                f"Got '{val.unit.physical_type}'"
+                f"{att.name} must have physical type of '{unit}'. Got '{val.unit.physical_type}'"
             )
 
     return _check_type