diff --git a/example/pubspec.yaml b/example/pubspec.yaml
index 5efcbe4..3949e5a 100644
--- a/example/pubspec.yaml
+++ b/example/pubspec.yaml
@@ -18,7 +18,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.17.1 <4.0.0'
 
 dependencies:
   advanced_datatable:
diff --git a/pubspec.yaml b/pubspec.yaml
index 5ba8a70..f3cede1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -5,7 +5,7 @@ version: 0.0.9
 homepage: https://devowl.de
 
 environment:
-  sdk: ">=2.17.1 <3.0.0"
+  sdk: '>=2.17.1 <4.0.0'
 
 dependencies:
   flutter: