diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2571bafa..3d30059a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Added `django-perf-rec` to `dev` extras in `pyproject.toml`.
 - Added `pip` and `uv` to `dev` extras in `pyproject.toml`.
 
+### Fixed
+
+- Added a new `py-dev` stage to the `Dockerfile` for installation of development dependencies. All intermediate stages afterwards now rely on the Python packages installed in this stage, with the exception of the final stage which only copies the production dependencies from the `py` stage.
+
 ## [2024.41]
 
 ### Changed
diff --git a/src/django_twc_project/Dockerfile.jinja b/src/django_twc_project/Dockerfile.jinja
index 29892112..0585db91 100644
--- a/src/django_twc_project/Dockerfile.jinja
+++ b/src/django_twc_project/Dockerfile.jinja
@@ -70,8 +70,15 @@ RUN --mount=type=cache,target=/root/.cache/pip --mount=type=cache,target=/root/.
   && uv pip install -r requirements.txt
 
 
-FROM node-base as node
+FROM py as py-dev
 COPY --from=py --link /usr/local /usr/local
+COPY --link requirements.dev.txt ./
+RUN --mount=type=cache,target=/root/.cache/pip --mount=type=cache,target=/root/.cache/uv \
+  uv pip install -r requirements.dev.txt
+
+
+FROM node-base as node
+COPY --from=py-dev --link /usr/local /usr/local
 COPY --link package*.json /app
 RUN --mount=type=cache,target=/root/.npm npm install
 
@@ -96,7 +103,6 @@ RUN case ${BUILDARCH} in \
 
 
 FROM base as app
-COPY --from=py --link /usr/local /usr/local
 COPY --link manage.py package.json /app/
 COPY --link {{ module_name }} /app/{{ module_name }}
 COPY --link templates /app/templates
@@ -105,7 +111,7 @@ COPY --link templates /app/templates
 FROM mcr.microsoft.com/playwright/python:v{{ playwright_version }} as dev
 ENV DEBIAN_FRONTEND noninteractive
 ENV UV_SYSTEM_PYTHON true
-COPY --from=py --link /usr/local /usr/local
+COPY --from=py-dev --link /usr/local /usr/local
 COPY --from=app --link /app /app
 COPY --link requirements.dev.txt ./
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked --mount=type=cache,target=/var/lib/apt,sharing=locked \
@@ -116,8 +122,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked --mount=type=cache,t
   # (it's normally included in the Python based images)
   tzdata \
   # cleanup
-  && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* \
-  && uv pip install -r requirements.dev.txt
+  && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/*
 
 
 FROM node as node-final
@@ -137,7 +142,7 @@ RUN python manage.py tailwind --skip-checks build
 
 FROM app as static
 ENV DATABASE_URL sqlite://:memory:
-COPY --from=py --link /usr/local /usr/local
+COPY --from=py-dev --link /usr/local /usr/local
 COPY --from=node-final --link /app/static/dist /app/static/dist
 COPY --from=node-final --link /app/package*.json /app/
 COPY --link static/public /app/static/public