use strict version

Dockerfile

@@ -1,10 +1,8 @@
 FROM python:3.12.9-slim-bullseye AS builder
 ENV PYTHONUNBUFFERED 1
 COPY . ./
-
 ENV POETRY_VERSION=2.1.1
-
-RUN pip install --upgrade pip
+RUN pip install pip==25.3
 RUN pip install "poetry==$POETRY_VERSION"
 RUN poetry self add poetry-plugin-export
 RUN poetry export --without-hashes --format=requirements.txt --output requirements.txt
@@ -24,7 +22,7 @@ ENV PYTHONUNBUFFERED=1 \
     PIP_DEFAULT_TIMEOUT=100
 
 RUN apt-get update && apt-get install --no-install-recommends -y build-essential
-RUN pip install --upgrade pip
+RUN pip install pip==25.3
 RUN pip install --no-deps -r requirements.txt
 
 RUN python manage.py collectstatic --noinput