diff --git a/pubspec.yaml b/pubspec.yaml
index 98cddc7..96ddbc4 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,11 +1,11 @@
 name: map
 description: Geographical Map widget for flutter supporting different projections including EPSG4326/Mercator/WGS1984.
-version: 1.4.1
+version: 1.4.2
 homepage: https://pwa.ir
 repository: https://github.com/xclud/flutter_map
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: ">=2.12.0 <4.0.0"
 
 dependencies:
   flutter: