diff --git a/pyproject.toml b/pyproject.toml
index c292fc9..3708ce8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ dependencies = [
 "Source Code" = "https://github.com/openclimatefix/Open-Source-Quartz-Solar-Forecast.git"
 
 [tool.setuptools]
-packages = { find = { include = ["*"] } }
+packages = { find_namespace = { include = ["*"] } }
 package-data = { "quartz_solar_forecast" = ["*"] }
 
 [project.optional-dependencies]