Fix versions

pyproject.toml

@@ -39,19 +39,18 @@ priority = "primary"
 name = "gitlab"
 url = "https://edugit.org/api/v4/projects/461/packages/pypi/simple"
 priority = "supplemental"
+
 [tool.poetry.dependencies]
 python = "^3.10"
 mysqlclient = "^2.0.0"
 tqdm = "^4.44.1"
 defusedxml = "^0.7.0"
 aleksis-app-lesrooster = { path = "../../onboarding/AlekSIS-App-Lesrooster" }
-aleksis-core = "^3.0"
-aleksis-app-chronos = "^3.0"
+aleksis-core = "^4.0.0.dev5"
 
 [tool.poetry.plugins."aleksis.app"]
 untis = "aleksis.apps.untis.apps:UntisConfig"
 
-
 [tool.poetry.group.dev.dependencies]
 django-stubs = "^4.2"
 safety = "^2.3.5"