diff --git a/MANIFEST.in b/MANIFEST.in
index 3135ee3f85e..ad3b372d4a5 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,7 +1,6 @@
 include AUTHORS
 include CODE_OF_CONDUCT.md
-include CONTRIBUTING.rst
-include HACKING.rst
+include CONTRIBUTING.md
 include LICENSE
 include NOTICE
 include README.rst