diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index 4dfbf56..0000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,20 +0,0 @@
-include LICENSE
-include AUTHORS
-include CHANGELOG
-include *.rst
-include deepdiff/*.rst
-include *.txt
-include *.sh
-include pytest.ini
-include *.py
-exclude uv.lock
-recursive-include docs/ *.rst
-recursive-include docs/ *.png
-recursive-include tests *.csv
-recursive-include tests *.json
-recursive-include tests *.pickle
-recursive-include tests *.py
-recursive-include tests *.toml
-recursive-include tests *.yaml
-global-exclude __pycache__
-global-exclude *.py[co]
diff --git a/pyproject.toml b/pyproject.toml
index 043f9d2..5c6f2d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -101,5 +101,18 @@ statistics = true
 ignore = "E202"
 exclude = "./data,./src,.svn,CVS,.bzr,.hg,.git,__pycache__"
 
+[tool.flit.sdist]
+include = [
+  "AUTHORS.md",
+  "CHANGELOG.md",
+  "CITATION.cff",
+  "conftest.py",
+  "docs/",
+  "mypy.ini",
+  "noxfile.py",
+  "tests/",
+  "uv.lock",
+]
+
 [tool.pytest.ini_options]
 addopts = "--pdbcls=IPython.terminal.debugger:Pdb"