diff --git a/pubspec.lock b/pubspec.lock
index 184abac7..5df7d93b 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -2190,4 +2190,4 @@ packages:
     version: "2.2.2"
 sdks:
   dart: ">=3.9.2 <3.10.0-z"
-  flutter: ">=3.29.0"
+  flutter: ">=3.35.7 <4.0.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 89a5ac92..fb1fd09d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -5,6 +5,12 @@ version: 3.0.0+30000
 
 environment:
   sdk: ^3.9.2
+  # ! IMPORTANT !
+  # This SDK version is strictly required and must not be removed.
+  # It is parsed/grep-ed by Makefile and Dockerfile to configure the build environment.
+  # Ensure this matches the target Flutter version.
+  flutter: ^3.35.7
+  
 dependencies:
   flutter:
     sdk: flutter
@@ -161,6 +167,7 @@ flutter:
     - assets/images/connect_norouz.PNG
     - assets/images/disconnect_norouz.PNG
     - assets/images/world_map.png
+    - assets/images/source/ic_launcher_border.png
 
   fonts:
     - family: Shabnam