diff --git a/MANIFEST.in b/MANIFEST.in
index cb2f4509..25be1608 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,4 @@
-include MANIFEST.in README.rst LICENSE certifi/cacert.pem
+include MANIFEST.in README.rst LICENSE certifi/cacert.pem certifi/py.typed
 
 exclude .github/
-recursive-exclude .github
\ No newline at end of file
+recursive-exclude .github