diff --git a/config/settings/base.py b/config/settings/base.py
index 793159c..1180e1b 100644
--- a/config/settings/base.py
+++ b/config/settings/base.py
@@ -71,6 +71,7 @@
 # Database
 # https://docs.djangoproject.com/en/5.0/ref/settings/#databases
 
+# Using dj-database-url for the temporary Heroku dev environment
 DATABASES = {"default": dj_database_url.config(conn_max_age=600)}
 
 
diff --git a/heroku.yml b/heroku.yml
new file mode 100644
index 0000000..2747017
--- /dev/null
+++ b/heroku.yml
@@ -0,0 +1,8 @@
+# Only required for temporary Heroku dev environment
+build:
+  docker:
+    web: Dockerfile
+release:
+  image: web
+  command:
+    - poetry run python /app/manage.py check --deploy && poetry run python /app/manage.py createcachetable && poetry run python /app/manage.py migrate --noinput
diff --git a/pyproject.toml b/pyproject.toml
index 7b7c2ab..9421215 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,14 +8,18 @@ packages = [{include = "app"}]
 
 [tool.poetry.dependencies]
 python = "^3.12"
-requests = "^2.31.0"
-tna-frontend-jinja = "0.2.18"
 django = "^5.0.7"
-psycopg2-binary = "^2.9.9"
 django-csp = "^3.8"
-whitenoise = "^6.7.0"
+
+# Using dj-database-url for the temporary Heroku dev environment
 dj-database-url = "^2.3.0"
 
+psycopg2-binary = "^2.9.9"
+requests = "^2.31.0"
+tna-frontend-jinja = "0.2.18"
+whitenoise = "^6.7.0"
+
+
 [tool.poetry.group.dev]
 optional = true