diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 5ace4600..bd654063 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,3 +4,5 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+    commit-message:
+      prefix: "chore: "
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 8677d780..57bffaa6 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -115,7 +115,7 @@ jobs:
     strategy:
       matrix:
         platform:
-          - runner: macos-12
+          - runner: macos-13
             target: x86_64
           - runner: macos-14
             target: aarch64
diff --git a/crates/lox-ephem/src/spk/api.rs b/crates/lox-ephem/src/spk/api.rs
index b06e0c33..863c4b44 100644
--- a/crates/lox-ephem/src/spk/api.rs
+++ b/crates/lox-ephem/src/spk/api.rs
@@ -49,7 +49,7 @@ impl Spk {
         array: &'a SpkType2Array,
         initial_epoch: Epoch,
         epoch: Epoch,
-    ) -> Result<(&Vec<SpkType2Coefficients>, f64), DafSpkError> {
+    ) -> Result<(&'a Vec<SpkType2Coefficients>, f64), DafSpkError> {
         let seconds_from_record_start = epoch - initial_epoch;
 
         let intlen = array.intlen as f64;
@@ -81,7 +81,7 @@ impl Spk {
         &'a self,
         epoch: Epoch,
         segment: &'a SpkSegment,
-    ) -> Result<(Vec<f64>, &Vec<SpkType2Coefficients>), DafSpkError> {
+    ) -> Result<(Vec<f64>, &'a Vec<SpkType2Coefficients>), DafSpkError> {
         let (coefficients, record) = match &segment.data {
             super::parser::SpkArray::Type2(array) => {
                 let (record, fraction) = self.find_record(array, segment.initial_epoch, epoch)?;
diff --git a/crates/lox-math/src/linear_algebra/tridiagonal.rs b/crates/lox-math/src/linear_algebra/tridiagonal.rs
index 16a7e91b..f4e9fa66 100644
--- a/crates/lox-math/src/linear_algebra/tridiagonal.rs
+++ b/crates/lox-math/src/linear_algebra/tridiagonal.rs
@@ -67,7 +67,7 @@ impl<'a> Tridiagonal<'a> {
     }
 }
 
-impl<'a> Index<Idx> for Tridiagonal<'a> {
+impl Index<Idx> for Tridiagonal<'_> {
     type Output = f64;
 
     fn index(&self, (i, j): Idx) -> &Self::Output {
diff --git a/crates/lox-math/src/math.rs b/crates/lox-math/src/math.rs
index 8f11e4cc..efd0eabb 100644
--- a/crates/lox-math/src/math.rs
+++ b/crates/lox-math/src/math.rs
@@ -1,9 +1,9 @@
+//! Module math provides common mathematical functions shared by many parts of the library.
+
 use std::f64::consts::{PI, TAU};
 
 use crate::types::units::{Arcseconds, Radians};
 
-/// Module math provides common mathematical functions shared by many parts of the library.
-
 /// Normalizes an angle `a` to the range [center-π, center+π).
 pub fn normalize_two_pi(a: Radians, center: Radians) -> Radians {
     a - 2.0 * PI * ((a + PI - center) / (2.0 * PI)).floor()
diff --git a/crates/lox-space/pyproject.toml b/crates/lox-space/pyproject.toml
index d0691e38..b78eb263 100644
--- a/crates/lox-space/pyproject.toml
+++ b/crates/lox-space/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "lox-space"
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 classifiers = [
     "Programming Language :: Rust",
     "Programming Language :: Python :: Implementation :: CPython",
diff --git a/crates/lox-time/src/test_helpers.rs b/crates/lox-time/src/test_helpers.rs
index d641b1bb..fdc73517 100644
--- a/crates/lox-time/src/test_helpers.rs
+++ b/crates/lox-time/src/test_helpers.rs
@@ -6,8 +6,6 @@
  * file, you can obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-#![cfg(test)]
-
 use std::{path::PathBuf, sync::OnceLock};
 
 use crate::{ut1::DeltaUt1Tai, utc::leap_seconds::BuiltinLeapSeconds};