diff --git a/pyproject.toml b/pyproject.toml
index a04dee2c3637386bf88f13344abbc3e6e6c6c3d2..83c7f3a47b5840d5e2c4187fdd290000a57a6c4c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,6 +63,8 @@ include = [
   "tests/**/*.json",
   "doc/**/*.rst",
   "doc/**/*.png",
+  "doc/*.txt",
+  "doc/*.inv",
   "LICENSES/*.txt",
 ]