diff --git a/pyproject.toml b/pyproject.toml
index 8b2ed5d..939cb76 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,9 @@
 requires = [
     "setuptools>=66.1",
     "setuptools_scm>=8.1",
+    "wheel",
     "cython",
+    "rectangle-packer==2.0.2"
 ]
 build-backend = "setuptools.build_meta"