diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index afd7ee4..683de2c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,17 +9,14 @@ on:
 jobs:
   pytest:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: "3.12"
           cache: pip
 
       - name: Install dependencies
diff --git a/README.md b/README.md
index 4c5a523..34e744d 100644
--- a/README.md
+++ b/README.md
@@ -105,7 +105,7 @@ pytest
 
 Any bug fix or new solver logic should keep existing tests passing and add new tests alongside it. Test coverage spans the isentropic, oblique shock, Taylor-Maccoll, and MoC point solvers, plus `point.py`, `process_LE_points.py`, `metric_derivative_solver.py`, and `velocity_altitude_map.py`. The streamline integrator and surface pressure solver still have no automated tests.
 
-A GitHub Actions workflow (`.github/workflows/tests.yml`) runs the full suite on every push and pull request against `main`, on Python 3.11 and 3.12.
+A GitHub Actions workflow (`.github/workflows/tests.yml`) runs the full suite on every push and pull request against `main`, on Python 3.12 (the version `requirements.txt` is pinned against).
 
 ---
 
diff --git a/pytest.ini b/pytest.ini
index 95f9027..f29840a 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -2,6 +2,6 @@
 
 [pytest]
 
-pythonpath = src
+pythonpath = . src
 
 testpaths = tests
\ No newline at end of file