diff --git a/composer.lock b/composer.lock
index 538ea48c..01fc5fe1 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2254,16 +2254,16 @@
         },
         {
             "name": "sebastian/global-state",
-            "version": "5.0.3",
+            "version": "5.0.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "23bd5951f7ff26f12d4e3242864df3e08dec4e49"
+                "reference": "19c519631c5a511b7ed0ad64a6713fdb3fd25fe4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/23bd5951f7ff26f12d4e3242864df3e08dec4e49",
-                "reference": "23bd5951f7ff26f12d4e3242864df3e08dec4e49",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/19c519631c5a511b7ed0ad64a6713fdb3fd25fe4",
+                "reference": "19c519631c5a511b7ed0ad64a6713fdb3fd25fe4",
                 "shasum": ""
             },
             "require": {
@@ -2306,7 +2306,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/global-state/issues",
-                "source": "https://github.com/sebastianbergmann/global-state/tree/5.0.3"
+                "source": "https://github.com/sebastianbergmann/global-state/tree/5.0.4"
             },
             "funding": [
                 {
@@ -2314,7 +2314,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-06-11T13:31:12+00:00"
+            "time": "2022-02-10T07:01:19+00:00"
         },
         {
             "name": "sebastian/lines-of-code",
diff --git a/src/Validator/Text.php b/src/Validator/Text.php
index b27c79d5..213609b3 100644
--- a/src/Validator/Text.php
+++ b/src/Validator/Text.php
@@ -23,21 +23,33 @@
  */
 class Text extends Validator
 {
+    const NUMBERS = [ '0','1','2','3','4','5','6','7','8','9' ];
+    const ALPHABET_UPPER = [ 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' ];
+    const ALPHABET_LOWER = [ 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z' ];
+
     /**
      * @var int
      */
     protected int $length = 0;
 
+    /**
+     * @var string[]
+     */
+    protected array $allowList = [];
+
     /**
      * Text constructor.
      *
-     * Validate text with maximum length $length. Use $length = 0 for unlimited length
+     * Validate text with maximum length $length. Use $length = 0 for unlimited length.
+     * Optionally, provide allowList characters array $allowList to only allow specific character.
      *
      * @param int $length
+     * @param string[] $allowList
      */
-    public function __construct(int $length)
+    public function __construct(int $length, array $allowList = [])
     {
         $this->length = $length;
+        $this->allowList = $allowList;
     }
 
     /**
@@ -54,6 +66,11 @@ public function getDescription(): string
         if ($this->length) {
             $message .= ' and no longer than ' . $this->length . ' chars';
         }
+
+        if ($this->allowList) {
+            $message .= ' and only consist of \'' . \join(', ', $this->allowList) . '\' chars';
+        }
+
         return $message;
     }
 
@@ -99,6 +116,14 @@ public function isValid(mixed $value): bool
             return false;
         }
 
+        if(\count($this->allowList) > 0) {
+            foreach (\str_split($value) as $char) {
+                if(!\in_array($char, $this->allowList)) {
+                    return false;
+                }
+            }
+        }
+
         return true;
     }
 }
diff --git a/tests/Validator/TextTest.php b/tests/Validator/TextTest.php
index f99dbaa8..72c3106d 100755
--- a/tests/Validator/TextTest.php
+++ b/tests/Validator/TextTest.php
@@ -45,4 +45,64 @@ public function testIsValid()
         $this->assertEquals(false, $this->text->isArray());
         $this->assertEquals(\Utopia\Validator::TYPE_STRING, $this->text->getType());
     }
+
+    public function testAllowList()
+    {
+        // Test lowercase alphabet
+        $this->validator = new Text(100, Text::ALPHABET_LOWER);
+        $this->assertEquals(\Utopia\Validator::TYPE_STRING, $this->validator->getType());
+        $this->assertEquals(false, $this->validator->isArray());
+        $this->assertEquals(true, $this->validator->isValid('qwertzuiopasdfghjklyxcvbnm'));
+        $this->assertEquals(true, $this->validator->isValid('hello'));
+        $this->assertEquals(true, $this->validator->isValid('world'));
+        $this->assertEquals(false, $this->validator->isValid('hello world'));
+        $this->assertEquals(false, $this->validator->isValid('Hello'));
+        $this->assertEquals(false, $this->validator->isValid('worlD'));
+        $this->assertEquals(false, $this->validator->isValid('hello123'));
+
+        // Test uppercase alphabet
+        $this->validator = new Text(100, Text::ALPHABET_UPPER);
+        $this->assertEquals(\Utopia\Validator::TYPE_STRING, $this->validator->getType());
+        $this->assertEquals(false, $this->validator->isArray());
+        $this->assertEquals(true, $this->validator->isValid('QWERTZUIOPASDFGHJKLYXCVBNM'));
+        $this->assertEquals(true, $this->validator->isValid('HELLO'));
+        $this->assertEquals(true, $this->validator->isValid('WORLD'));
+        $this->assertEquals(false, $this->validator->isValid('HELLO WORLD'));
+        $this->assertEquals(false, $this->validator->isValid('hELLO'));
+        $this->assertEquals(false, $this->validator->isValid('WORLd'));
+        $this->assertEquals(false, $this->validator->isValid('HELLO123'));
+
+        // Test numbers
+        $this->validator = new Text(100, Text::NUMBERS);
+        $this->assertEquals(\Utopia\Validator::TYPE_STRING, $this->validator->getType());
+        $this->assertEquals(false, $this->validator->isArray());
+        $this->assertEquals(true, $this->validator->isValid('1234567890'));
+        $this->assertEquals(true, $this->validator->isValid('123'));
+        $this->assertEquals(false, $this->validator->isValid('123 456'));
+        $this->assertEquals(false, $this->validator->isValid('hello123'));
+
+        // Test combination of allowLists
+        $this->validator = new Text(100, [
+            ...Text::ALPHABET_LOWER,
+            ...Text::ALPHABET_UPPER,
+            ...Text::NUMBERS
+        ]);
+        $this->assertEquals(\Utopia\Validator::TYPE_STRING, $this->validator->getType());
+        $this->assertEquals(false, $this->validator->isArray());
+        $this->assertEquals(true, $this->validator->isValid('1234567890'));
+        $this->assertEquals(true, $this->validator->isValid('qwertzuiopasdfghjklyxcvbnm'));
+        $this->assertEquals(true, $this->validator->isValid('QWERTZUIOPASDFGHJKLYXCVBNM'));
+        $this->assertEquals(true, $this->validator->isValid('QWERTZUIOPASDFGHJKLYXCVBNMqwertzuiopasdfghjklyxcvbnm1234567890'));
+        $this->assertEquals(false, $this->validator->isValid('hello-world'));
+        $this->assertEquals(false, $this->validator->isValid('hello_world'));
+        $this->assertEquals(false, $this->validator->isValid('hello/world'));
+
+        // Test length validation
+        $this->validator = new Text(5, Text::ALPHABET_LOWER);
+        $this->assertEquals(\Utopia\Validator::TYPE_STRING, $this->validator->getType());
+        $this->assertEquals(false, $this->validator->isArray());
+        $this->assertEquals(true, $this->validator->isValid('hell'));
+        $this->assertEquals(true, $this->validator->isValid('hello'));
+        $this->assertEquals(false, $this->validator->isValid('hellow'));
+    }
 }