diff --git a/MANIFEST.in b/MANIFEST.in
index 46ef0b46b8..439de496f0 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +1 @@
-include README.rst LICENSE NOTICE HISTORY.rst test_requests.py requests/cacert.pem
+include README.rst LICENSE NOTICE HISTORY.rst test_requests.py requirements.txt requests/cacert.pem