diff --git a/app/Http/Requests/Company/StoreCompanyRequest.php b/app/Http/Requests/Company/StoreCompanyRequest.php
index 12b3c9a26..3fb397608 100644
--- a/app/Http/Requests/Company/StoreCompanyRequest.php
+++ b/app/Http/Requests/Company/StoreCompanyRequest.php
@@ -49,7 +49,7 @@ class StoreCompanyRequest extends Request
         } else {
            
             if(Ninja::isHosted()){
-                $rules['subdomain'] = ['nullable', 'alpha_num', new ValidSubdomain($this->all())];
+                $rules['subdomain'] = ['nullable', 'regex:/^[a-zA-Z0-9][a-zA-Z0-9.-]+[a-zA-Z0-9]$/', new ValidSubdomain($this->all())];
             }
             else
                 $rules['subdomain'] = 'nullable|alpha_num';
diff --git a/app/Http/Requests/Company/UpdateCompanyRequest.php b/app/Http/Requests/Company/UpdateCompanyRequest.php
index 42fb295e7..01b94b28d 100644
--- a/app/Http/Requests/Company/UpdateCompanyRequest.php
+++ b/app/Http/Requests/Company/UpdateCompanyRequest.php
@@ -50,7 +50,7 @@ class UpdateCompanyRequest extends Request
         } else {
 
             if(Ninja::isHosted()){
-                $rules['subdomain'] = ['nullable', 'alpha_num', new ValidSubdomain($this->all())];
+                $rules['subdomain'] = ['nullable', 'regex:/^[a-zA-Z0-9][a-zA-Z0-9.-]+[a-zA-Z0-9]$/', new ValidSubdomain($this->all())];
             }
             else
                 $rules['subdomain'] = 'nullable|alpha_num';