diff --git a/requirements.txt b/requirements.txt
index 27308d8a..658662c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ pycryptodome==3.6.6
 pylibmc==1.6.3
 python-dateutil==2.5.3
 python-slugify==1.2.0
-pytz==2016.4
+pytz>=2023.3
 rcssmin==1.0.6
 requests>=2.20
 rjsmin==1.0.12
@@ -86,16 +86,16 @@ git+https://github.com/ungleich/python-oca.git#egg=oca
 djangorestframework==3.6.3
 flake8==3.3.0
 python-memcached==1.58
-celery==4.0.2
+celery==5.2.7
 redis==2.10.5
-django-celery-results==1.0.1
-kombu==4.1.0
+django-celery-results>=2.5.1
+kombu>=5.2.3
 mccabe==0.6.1
 pycodestyle==2.3.1
 pyflakes==1.5.0
-billiard==3.5.0.3
+billiard==3.6.4.0
 amqp==2.2.1
-vine==1.1.4
+vine>=5.0.0
 cdist==5.0.1
 git+https://github.com/ungleich/djangocms-multisite.git#egg=djangocms_multisite
 pyotp