diff --git a/pyproject.toml b/pyproject.toml
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,13 +43,14 @@ dependencies = [
     "starlette-exporter>=0.12.0",
     "PyGObject>=3.42.1",
     "aiohttp>=3.8.1",
-    "rdfdb @ file:///my/proj/rdfdb",
+    "rdfdb @ https://projects.bigasterisk.com/rdfdb/rdfdb-0.23.0.tar.gz",
 ]
 requires-python = ">=3.9"
 
 [project.urls]
 Homepage = ""
 
+[project.optional-dependencies]
 [tool.pdm]
 
 [tool.pdm.dev-dependencies]
@@ -66,6 +67,7 @@ dev = [
     "pytest-watcher",
     "pytest",
     "yapf",
+    "pydeps>=1.10.18",
 ]
 
 [[tool.pdm.source]]