diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index add7354..9d57a73 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,10 +15,15 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: pip
           cache-dependency-path: setup.cfg
+      # https://docs.djangoproject.com/en/4.2/ref/contrib/gis/install/geolibs/
+      - run: |
+          sudo apt update
+          sudo apt install binutils libproj-dev gdal-bin
       - run: pip install .[test] '${{ matrix.django-version }}' psycopg2-binary
       - env:
           PORT: ${{ job.services.postgres.ports[5432] }}
-        run: django-admin migrate --settings settings --noinput
+          DJANGO_SETTINGS_MODULE: settings
+        run: env PYTHONPATH=$PYTHONPATH:$PWD django-admin migrate --noinput
       - env:
           PORT: ${{ job.services.postgres.ports[5432] }}
         run: coverage run --source=boundaries runtests.py
diff --git a/README.rst b/README.rst
index a02024f..7806520 100644
--- a/README.rst
+++ b/README.rst
@@ -54,7 +54,7 @@ Testing
 
     createdb represent_boundaries_test
     psql represent_boundaries_test -c 'CREATE EXTENSION postgis;'
-    django-admin migrate --settings settings --noinput
+    env DJANGO_SETTINGS_MODULE=settings django-admin migrate --noinput
     python runtests.py
 
 Acknowledgements
diff --git a/settings.py b/settings.py
index c2738f4..2f258ef 100644
--- a/settings.py
+++ b/settings.py
@@ -1,5 +1,5 @@
 """
-To run `PYTHONPATH=$PYTHONPATH:$PWD django-admin.py migrate --settings settings --noinput`.
+To run `env PYTHONPATH=$PYTHONPATH:$PWD DJANGO_SETTINGS_MODULE=settings django-admin.py migrate --noinput`.
 """
 import os