diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index 670eddf..0000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1 +0,0 @@
-include ghstack/github_schema.graphql LICENSE
diff --git a/pyproject.toml b/pyproject.toml
index 4c3e4c7..4e5ba41 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,10 @@
 authors = [
     {name = "Edward Z. Yang", email = "ezyang@mit.edu"},
 ]
-license = {text = "MIT"}
+license = "MIT"
+license-files = [
+    "LICENSE",
+]
 requires-python = "<4.0.0,>=3.9.1"
 dependencies = [
     "aiohttp<4,>=3",