diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2a28e8..a823784 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 - Edit `CertificateInfo` resource
 - Extend `Contact` resource
 - Extend `AccountBilling` resource with identify limits
+- Add `AccountBilling.userContactLimit`
 
 ## [2.4.0] - 2024-05-14
 ### Added
diff --git a/src/Resource/AccountBilling.php b/src/Resource/AccountBilling.php
index 725d35c..9569580 100644
--- a/src/Resource/AccountBilling.php
+++ b/src/Resource/AccountBilling.php
@@ -24,6 +24,8 @@ class AccountBilling extends BaseResource
 
     public ?int $userLimit;
 
+    public ?int $userContactLimit;
+
     public int $envelopeUsage;
 
     public ?int $envelopeLimit;