diff --git a/pyproject.toml b/pyproject.toml
index 6dd1b0c1..8ff51b4f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,8 +2,14 @@
 requires = ["setuptools>=61.0"]
 build-backend = "setuptools.build_meta"
 
-[tool.setuptools]
-packages = ["simopt", "simopt.gui", "simopt.models", "simopt.solvers"]
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["simopt*"]
+# Ignore the build directory so we don't circularly include built distributions.
+exclude = ["build*"]
+
+[tool.setuptools.package-data]
+"simopt.data_farming" = ["*.npz"]
 
 [project]
 name = "simoptlib"