diff --git a/setup.cfg b/setup.cfg
index 01bdec70f0..6e61f45e8a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,6 +27,7 @@ install_requires=
     python-dotenv
     requests
     stem
+    validators
     waitress
 
 [options.extras_require]