diff --git a/lib/marquee.dart b/lib/marquee.dart
index f35261b..7eba221 100644
--- a/lib/marquee.dart
+++ b/lib/marquee.dart
@@ -39,7 +39,9 @@ class _IntegralCurve extends Curve {
     values[1.0] = integral;
 
     // Normalize.
-    for (final double t in values.keys) values[t] = values[t]! / integral;
+    for (final double t in values.keys) {
+      values[t] = values[t]! / integral;
+    }
 
     return _IntegralCurve._(original, integral, values);
   }
@@ -48,7 +50,12 @@ class _IntegralCurve extends Curve {
   /// curve.
   double transform(double t) {
     if (t < 0) return 0.0;
-    for (final key in _values.keys) if (key > t) return _values[key]!;
+    for (final key in _values.keys) {
+      if (key > t) {
+        return _values[key]!;
+      }
+    }
+
     return 1.0;
   }
 }
@@ -94,7 +101,7 @@ class Marquee extends StatefulWidget {
     super.key,
     required this.text,
     this.style,
-    this.textScaleFactor,
+    this.textScaleFactor = 1.0,
     this.textDirection = TextDirection.ltr,
     this.scrollAxis = Axis.horizontal,
     this.crossAxisAlignment = CrossAxisAlignment.center,
@@ -145,7 +152,8 @@ class Marquee extends StatefulWidget {
           "isn't invented yet.",
         ),
         this.accelerationCurve = _IntegralCurve(accelerationCurve),
-        this.decelerationCurve = _IntegralCurve(decelerationCurve);
+        this.decelerationCurve = _IntegralCurve(decelerationCurve),
+        this.textScaler = TextScaler.linear(textScaleFactor);
 
   /// The text to be displayed.
   ///
@@ -188,7 +196,8 @@ class Marquee extends StatefulWidget {
   /// See also:
   ///
   /// * [text] to provide the text itself.
-  final double? textScaleFactor;
+  final double textScaleFactor;
+  final TextScaler textScaler;
 
   /// The text direction of the text to be displayed.
   ///
@@ -687,7 +696,10 @@ class _MarqueeState extends State<Marquee> with SingleTickerProviderStateMixin {
 
     final constraints = BoxConstraints(maxWidth: double.infinity);
 
-    final richTextWidget = Text.rich(span).build(context) as RichText;
+    final richTextWidget = Text.rich(
+      span,
+      textScaler: TextScaler.linear(widget.textScaleFactor),
+    ).build(context) as RichText;
     final renderObject = richTextWidget.createRenderObject(context);
     renderObject.layout(constraints);
 
@@ -730,8 +742,11 @@ class _MarqueeState extends State<Marquee> with SingleTickerProviderStateMixin {
       physics: NeverScrollableScrollPhysics(),
       itemBuilder: (_, i) {
         final text = i.isEven
-            ? Text(widget.text,
-                style: widget.style, textScaleFactor: widget.textScaleFactor)
+            ? Text(
+                widget.text,
+                style: widget.style,
+                textScaler: widget.textScaler,
+              )
             : _buildBlankSpace();
         return alignment == null
             ? text
diff --git a/pubspec.yaml b/pubspec.yaml
index 62f10f6..da794af 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -6,11 +6,11 @@ version: 2.2.3
 repository: https://github.com/MarcelGarus/marquee
 
 environment:
-  flutter: '>=3.0.0'
+  flutter: '>=3.12.0'
   sdk: '>=2.17.0 <3.0.0'
 
 dependencies:
-  fading_edge_scrollview: ^3.0.0
+  fading_edge_scrollview: ^4.0.0
   flutter:
     sdk: flutter