diff --git a/requirements.txt b/requirements.txt
index 13bfc39..ab6ab17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 click==8.0.1
 Flask==2.0.1
 Flask-WTF==0.15.1
+gunicorn==20.1.0
 irctokens==2.0.0
 itsdangerous==2.0.1
 Jinja2==3.0.1