diff --git a/pyproject.toml b/pyproject.toml
index 9a5f97f8..6013bdf7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ documentation = "https://cadet-process.readthedocs.io"
 "Bug Tracker" = "https://github.com/fau-advanced-separations/CADET-Process/issues"
 
 [tool.setuptools.packages.find]
-include = ["CADETProcess*"]
+include = ["CADETProcess*", "examples*", "tests*"]
 
 [tool.setuptools.dynamic]
 version = { attr = "CADETProcess.__version__" }