diff --git a/pyproject.toml b/pyproject.toml
index b391f00..5dbb91b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,6 +34,7 @@ dev = [
 ]
 
 [tool.uv]
+check-url = "https://pypi.org/simple/"
 workspace.members = [
   "example",
   "packages/*",