Django>=5.0,<7.0
whitenoise>=6.6
gunicorn>=22
psycopg[binary]>=3.1
segno>=1.6
pyhanko>=0.29
pypdf>=5
reportlab>=4
pillow>=11,<12.3  # 12.3+ no trae wheels manylinux2014 (servidores con glibc < 2.28)