diff --git a/certbot-nginx/local-oldest-requirements.txt b/certbot-nginx/local-oldest-requirements.txt
index 2108298ae..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
-certbot[dev]==0.32.0
+-e .[dev]
diff --git a/certbot-nginx/setup.py b/certbot-nginx/setup.py
index 7494bf6bf..49432a00d 100644
--- a/certbot-nginx/setup.py
+++ b/certbot-nginx/setup.py
@@ -10,7 +10,7 @@ version = '0.33.0.dev0'
 # acme/certbot version.
 install_requires = [
     'acme>=0.26.0',
-    'certbot>=0.22.0',
+    'certbot>=0.33.0.dev0',
     'mock',
     'PyOpenSSL',
     'pyparsing>=1.5.5',  # Python3 support; perhaps unnecessary?