diff --git a/pyproject.toml b/pyproject.toml
index 06916f3..f94a81a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,4 +33,4 @@ evalharness = "evalharness.cli:main"
 include = ["evalharness*"]
 
 [tool.setuptools.package-data]
-"*" = ["*.jsonl", "*.json", "*.csv", "*.tsv"]
+"*" = ["*.jsonl", "*.json", "*.csv", "*.tsv", "*.txt", "*.md"]