diff --git a/flexiapi/app/Http/Requests/CreateAccountRequest.php b/flexiapi/app/Http/Requests/CreateAccountRequest.php
index 22a1471..b1e8f87 100644
--- a/flexiapi/app/Http/Requests/CreateAccountRequest.php
+++ b/flexiapi/app/Http/Requests/CreateAccountRequest.php
@@ -6,6 +6,8 @@ use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Validation\Rule;
 
 use App\Account;
+use App\Rules\IsNotPhoneNumber;
+use App\Rules\NoUppercase;
 use App\Rules\WithoutSpaces;
 
 class CreateAccountRequest extends FormRequest
@@ -20,6 +22,8 @@ class CreateAccountRequest extends FormRequest
         return [
             'username' => [
                 'required',
+                new NoUppercase,
+                new IsNotPhoneNumber,
                 Rule::unique('accounts', 'username')->where(function ($query) {
                     $query->where('domain', config('app.sip_domain'));
                 }),
diff --git a/flexiapi/app/Http/Requests/UpdateAccountRequest.php b/flexiapi/app/Http/Requests/UpdateAccountRequest.php
index fbab93b..82d7fb7 100644
--- a/flexiapi/app/Http/Requests/UpdateAccountRequest.php
+++ b/flexiapi/app/Http/Requests/UpdateAccountRequest.php
@@ -6,6 +6,8 @@ use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Validation\Rule;
 
 use App\Account;
+use App\Rules\IsNotPhoneNumber;
+use App\Rules\NoUppercase;
 use App\Rules\WithoutSpaces;
 
 class UpdateAccountRequest extends FormRequest
@@ -20,6 +22,8 @@ class UpdateAccountRequest extends FormRequest
         return [
             'username' => [
                 'required',
+                new NoUppercase,
+                new IsNotPhoneNumber,
                 Rule::unique('accounts', 'username')->where(function ($query) {
                     $query->where('domain', config('app.sip_domain'));
                 })->ignore($this->route('id'), 'id'),
diff --git a/flexiapi/composer.lock b/flexiapi/composer.lock
index 37d5b79..04117b3 100644
--- a/flexiapi/composer.lock
+++ b/flexiapi/composer.lock
@@ -1465,16 +1465,16 @@
         },
         {
             "name": "laravel/framework",
-            "version": "v8.83.23",
+            "version": "v8.83.24",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laravel/framework.git",
-                "reference": "bdc707f8b9bcad289b24cd182d98ec7480ac4491"
+                "reference": "a684da6197ae77eee090637ae4411b2f321adfc7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/laravel/framework/zipball/bdc707f8b9bcad289b24cd182d98ec7480ac4491",
-                "reference": "bdc707f8b9bcad289b24cd182d98ec7480ac4491",
+                "url": "https://api.github.com/repos/laravel/framework/zipball/a684da6197ae77eee090637ae4411b2f321adfc7",
+                "reference": "a684da6197ae77eee090637ae4411b2f321adfc7",
                 "shasum": ""
             },
             "require": {
@@ -1634,7 +1634,7 @@
                 "issues": "https://github.com/laravel/framework/issues",
                 "source": "https://github.com/laravel/framework"
             },
-            "time": "2022-07-26T13:30:00+00:00"
+            "time": "2022-09-22T18:59:47+00:00"
         },
         {
             "name": "laravel/serializable-closure",
@@ -7926,16 +7926,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.5.24",
+            "version": "9.5.25",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "d0aa6097bef9fd42458a9b3c49da32c6ce6129c5"
+                "reference": "3e6f90ca7e3d02025b1d147bd8d4a89fd4ca8a1d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/d0aa6097bef9fd42458a9b3c49da32c6ce6129c5",
-                "reference": "d0aa6097bef9fd42458a9b3c49da32c6ce6129c5",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/3e6f90ca7e3d02025b1d147bd8d4a89fd4ca8a1d",
+                "reference": "3e6f90ca7e3d02025b1d147bd8d4a89fd4ca8a1d",
                 "shasum": ""
             },
             "require": {
@@ -7957,14 +7957,14 @@
                 "phpunit/php-timer": "^5.0.2",
                 "sebastian/cli-parser": "^1.0.1",
                 "sebastian/code-unit": "^1.0.6",
-                "sebastian/comparator": "^4.0.5",
+                "sebastian/comparator": "^4.0.8",
                 "sebastian/diff": "^4.0.3",
                 "sebastian/environment": "^5.1.3",
-                "sebastian/exporter": "^4.0.3",
+                "sebastian/exporter": "^4.0.5",
                 "sebastian/global-state": "^5.0.1",
                 "sebastian/object-enumerator": "^4.0.3",
                 "sebastian/resource-operations": "^3.0.3",
-                "sebastian/type": "^3.1",
+                "sebastian/type": "^3.2",
                 "sebastian/version": "^3.0.2"
             },
             "suggest": {
@@ -8008,7 +8008,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.24"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.25"
             },
             "funding": [
                 {
@@ -8018,9 +8018,13 @@
                 {
                     "url": "https://github.com/sebastianbergmann",
                     "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/phpunit/phpunit",
+                    "type": "tidelift"
                 }
             ],
-            "time": "2022-08-30T07:42:16+00:00"
+            "time": "2022-09-25T03:44:45+00:00"
         },
         {
             "name": "sebastian/cli-parser",
diff --git a/flexisip-account-manager.spec b/flexisip-account-manager.spec
index 86caa80..1b5e69b 100644
--- a/flexisip-account-manager.spec
+++ b/flexisip-account-manager.spec
@@ -8,7 +8,7 @@
 #%define _datadir           %{_datarootdir}
 #%define _docdir            %{_datadir}/doc
 
-%define build_number 152
+%define build_number 153
 %define var_dir /var/opt/belledonne-communications
 %define opt_dir /opt/belledonne-communications/share/flexisip-account-manager