diff --git a/requirements.txt b/requirements.txt
index 63b87fa..7acdfaf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,4 +35,7 @@ python-multipart==0.0.20
 sniffio==1.3.1
 starlette==0.41.3
 hypercorn==0.17.3
-pydantic-settings==2.7.1
\ No newline at end of file
+pydantic-settings==2.7.1
+
+# subs
+certbot==3.1.0