diff --git a/ome-metadata/pyproject.toml b/ome-metadata/pyproject.toml
index 4942246..6049b9a 100644
--- a/ome-metadata/pyproject.toml
+++ b/ome-metadata/pyproject.toml
@@ -28,6 +28,10 @@ dynamic = [
 features = ["python"]
 module-name = "ome_metadata"
 strip = true
+include = [
+    { path = "LICENSE-MIT", format = "sdist" },
+    { path = "LICENSE-APACHE", format = "sdist" }
+]
 
 [tool.isort]
 line_length = 119