diff --git a/CHANGELOG.md b/CHANGELOG.md
index db8203acb..2507639fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## newVersion
+* **IMPROVEMENT** Add Flutter sdk constraints to the pubspec.yaml to force the user/developer to upgrade the Flutter version to 3.16.0 (latest), #1509
+
 ## 0.65.0
 * **FEATURE** (by @Dartek12) Added gradient to [FlLine](https://github.com/imaNNeo/fl_chart/blob/master/repo_files/documentations/base_chart.md#FlLine), #1197
 * **BUGFIX** (by @imaNNeo) Fix bar line shadow crash when we have only one (or zero) spot, #1466
diff --git a/pubspec.yaml b/pubspec.yaml
index 94ee5910f..1d46a17f6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -7,7 +7,8 @@ issue_tracker: https://github.com/imaNNeo/fl_chart/issues
 documentation: https://github.com/imaNNeo/fl_chart
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.2.0
+  flutter: ^3.16.0
 
 funding:
   - https://github.com/sponsors/imaNNeo