diff --git a/certbot-nginx/local-oldest-requirements.txt b/certbot-nginx/local-oldest-requirements.txt
index 7c12edfb0..db6b261f0 100644
--- a/certbot-nginx/local-oldest-requirements.txt
+++ b/certbot-nginx/local-oldest-requirements.txt
@@ -1,2 +1,2 @@
 acme[dev]==0.29.0
--e certbot[dev]
+-e .[dev]