diff --git a/MANIFEST.in b/MANIFEST.in
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -10,4 +10,8 @@
 recursive-include swh/web/templates *
 include swh/web/tests/browse/views/data/swh-logo.png
 include swh/web/tests/browse/views/data/iso-8859-1_encoded_content
-recursive-include swh/web/tests/resources *
\ No newline at end of file
+recursive-include swh/web/tests/resources *
+
+include package-lock.json
+include package.json
+include yarn.lock