diff --git a/lib/shared/invite-links.js b/lib/shared/invite-links.js
--- a/lib/shared/invite-links.js
+++ b/lib/shared/invite-links.js
@@ -45,7 +45,7 @@
   return null;
 }
 
-const inviteSecretRegexString = '[a-zA-Z0-9]+';
+const inviteSecretRegexString = '[a-zA-Z0-9-]+';
 const inviteSecretRegex: RegExp = new RegExp(
   `^${inviteSecretRegexString}$`,
   'i',