diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26714d6..cfea99c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # 17.0.0+1
 
-- Reduce `intl` dependency constraint to match Flutter 3.16.0
+- Reduce `intl` dependency constraint to match Flutter 3.16.0.
+- NumberValidator allows null values.
 
 # 17.0.0
 
diff --git a/lib/src/validators/number_validator.dart b/lib/src/validators/number_validator.dart
index 10803c9..867b952 100644
--- a/lib/src/validators/number_validator.dart
+++ b/lib/src/validators/number_validator.dart
@@ -27,6 +27,7 @@ class NumberValidator extends Validator<dynamic> {
 
   /// Creates a new NumberValidator instance to validate strings representing numbers.
   ///
+  /// [allowNull] (optional): Whether the validator allows null values.
   /// [allowedDecimals] (optional): The allowed number of decimal places. Defaults to 0.
   /// [allowNegatives] (optional): Whether to allow negative numbers. Defaults to true.
   const NumberValidator({