diff --git a/pkgs/development/python-modules/certbot-nginx/default.nix b/pkgs/development/python-modules/certbot-nginx/default.nix
index 6acc31e5f782..e832f5e7ac09 100644
--- a/pkgs/development/python-modules/certbot-nginx/default.nix
+++ b/pkgs/development/python-modules/certbot-nginx/default.nix
@@ -27,6 +27,7 @@ buildPythonPackage rec {
 
   pytestFlags = [
     "-pno:cacheprovider"
+    "-Wignore::DeprecationWarning"
   ];
 
   meta = certbot.meta // {