diff --git a/.github/workflows/python-package.yml b/.github/workflows/ci_tests.yml
similarity index 72%
rename from .github/workflows/python-package.yml
rename to .github/workflows/ci_tests.yml
index 2dd9427..ebce481 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/ci_tests.yml
@@ -1,7 +1,7 @@
 # This workflow will install Python dependencies, run tests and lint with a variety of Python versions
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
 
-name: Python package
+name: Tests for Aragog
 
 on:
   push:
@@ -17,32 +17,41 @@ on:
       - ready_for_review
   workflow_dispatch:
 
+permissions:
+  actions: write
+  contents: write
+
 jobs:
   build:
 
-    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12","3.13"]
+        python-version: ["3.11", "3.12","3.13"]
+        os: [ubuntu-latest, macos-latest]
+
+    runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v5
+
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
+        python -m pip install flake8 pytest pytest-cov pytest-dependency
         if [ -f pyproject.toml ]; then pip install .; fi
+
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
     - name: Test with pytest
-      run: |
-        pytest
+      run: pytest --cov-report term --cov-report markdown-append:$GITHUB_STEP_SUMMARY --cov=aragog tests/
diff --git a/aragog/__init__.py b/aragog/__init__.py
index ce8cccf..71a66cf 100644
--- a/aragog/__init__.py
+++ b/aragog/__init__.py
@@ -18,12 +18,12 @@
 
 from __future__ import annotations
 
-__version__: str = "25.10.27"
+__version__: str = "26.01.06"
 
 import importlib.resources
 import logging
 import os
-from importlib.abc import Traversable
+from importlib.resources.abc import Traversable
 
 CFG_DATA: Traversable = importlib.resources.files(f"{__package__}.cfg")
 
diff --git a/aragog/output.py b/aragog/output.py
index 9563529..d61d8a7 100644
--- a/aragog/output.py
+++ b/aragog/output.py
@@ -181,7 +181,7 @@ def rheological_front(self) -> float:
             rf = self.evaluator.mesh.basic.radii[idx]
 
         # Return dimensionless rheological front
-        return (self.evaluator.mesh.basic.radii[-1] - rf) / self.evaluator.mesh.basic.radii[-1]
+        return ((self.evaluator.mesh.basic.radii[-1] - rf) / self.evaluator.mesh.basic.radii[-1]).item()
 
     @property
     def melt_fraction_global(self) -> float:
diff --git a/pyproject.toml b/pyproject.toml
index 49b6a6a..56e21fb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,10 +1,25 @@
-[tool.poetry]
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+
+[project]
 name = "fwl-aragog"
-version = "25.10.27"
+version = "26.01.06"
+authors = [
+    {name="Dan J. Bower",            email="dbower@ethz.ch"},
+    {name="Mariana Sastre",          email="m.c.villamil.sastre@rug.nl"},
+    {name="Laurent Soucasse",        email="l.soucasse@esciencecenter.nl"},
+    {name="Tim Lichtenberg",         email="tim.lichtenberg@rug.nl"},
+    {name="Harrison Nicholls",       email="harrison.nicholls@physics.ox.ac.uk"},
+    {name="Hanno Spreeuw",           email="h.spreeuw@esciencecenter.nl"},
+    {name="Robb Calder",             email="rdc49@cam.ac.uk"},
+]
 description = "1-D interior dynamics of rocky mantles that are solid, liquid, or mixed phase"
-authors = ["Dan J Bower <djbower@users.noreply.github.com>"]
 license = "GPL-3.0-or-later"
 readme = "README.md"
+
+
+[tool.poetry]
 packages = [
     { include = "aragog" },
     { include = "notebooks", to = "aragog" },
@@ -29,7 +44,10 @@ osfclient = "^0.0.5"
 zenodo_get = ">=1.6.0"
 
 [tool.poetry.group.test.dependencies]
-pytest = "^7.4.4"
+pytest = ">=8.1"
+pytest-cov = ">=1.0.0"
+pytest-dependency = ">=1.0.0"
+
 
 [tool.poetry.extras]
 docs = [
@@ -42,6 +60,3 @@ docs = [
 [tool.poetry.scripts]
 aragog = "aragog.cli:cli"
 
-[build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
diff --git a/tests/conftest.py b/tests/conftest.py
index b5b1eb5..eb32089 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -18,7 +18,7 @@
 
 import importlib.resources
 from contextlib import AbstractContextManager
-from importlib.abc import Traversable
+from importlib.resources.abc import Traversable
 from pathlib import Path
 
 import pytest
diff --git a/tests/test_phase.py b/tests/test_phase.py
index 79d4bb5..fbdd8af 100644
--- a/tests/test_phase.py
+++ b/tests/test_phase.py
@@ -37,7 +37,7 @@
 
 def test_version():
     """Test version."""
-    assert __version__ == "25.10.27"
+    assert __version__ == "26.01.06"
 
 
 def test_liquid_constant_properties(helper):