diff --git a/lib/src/chart/bar_chart/bar_chart_data.dart b/lib/src/chart/bar_chart/bar_chart_data.dart
index 9a85a6328..70fd27580 100644
--- a/lib/src/chart/bar_chart/bar_chart_data.dart
+++ b/lib/src/chart/bar_chart/bar_chart_data.dart
@@ -302,7 +302,7 @@ class BarChartRodData with EquatableMixin {
   /// If you are a fan of stacked charts (If you don't know what is it, google it),
   /// you can fill up the [rodStackItems] to have a Stacked Chart.
   /// for example if you want to have a Stacked Chart with three colors:
-  /// ```
+  /// ```dart
   /// BarChartRodData(
   ///   y: 9,
   ///   color: Colors.grey,
@@ -446,7 +446,7 @@ class BarChartRodData with EquatableMixin {
 class BarChartRodStackItem with EquatableMixin {
   /// Renders a section of Stacked Chart from [fromY] to [toY] with [color]
   /// for example if you want to have a Stacked Chart with three colors:
-  /// ```
+  /// ```dart
   /// BarChartRodData(
   ///   y: 9,
   ///   color: Colors.grey,
diff --git a/lib/src/chart/base/axis_chart/axis_chart_data.dart b/lib/src/chart/base/axis_chart/axis_chart_data.dart
index 78ca3007d..a6064b737 100644
--- a/lib/src/chart/base/axis_chart/axis_chart_data.dart
+++ b/lib/src/chart/base/axis_chart/axis_chart_data.dart
@@ -1241,7 +1241,7 @@ class VerticalLineLabel extends FlLineLabel with EquatableMixin {
 /// Holds data for showing a vector image inside the chart.
 ///
 /// for example:
-/// ```
+/// ```dart
 /// Future<SizedPicture> loadSvg() async {
 ///    const String rawSvg = 'your svg string';
 ///    final DrawableRoot svgRoot = await svg.fromSvgString(rawSvg, rawSvg);
@@ -1253,7 +1253,7 @@ class SizedPicture with EquatableMixin {
   /// [picture] is the showing image,
   /// it can retrieve from a svg icon,
   /// for example:
-  /// ```
+  /// ```dart
   ///    const String rawSvg = 'your svg string';
   ///    final DrawableRoot svgRoot = await svg.fromSvgString(rawSvg, rawSvg);
   ///    final picture = svgRoot.toPicture()
diff --git a/pubspec.yaml b/pubspec.yaml
index e668c0773..2c8058f95 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -25,7 +25,7 @@ dev_dependencies:
     sdk: flutter
   mockito: ^5.4.2
   vector_math: ^2.1.4 #Added to use in some generated codes of mockito
-  very_good_analysis: ^5.1.0
+  very_good_analysis: ^6.0.0
 
 screenshots:
   - description: 'FL Chart Logo'