diff --git a/lib/anchored_popups.dart b/lib/anchored_popups.dart
index b8187d4..3c26679 100644
--- a/lib/anchored_popups.dart
+++ b/lib/anchored_popups.dart
@@ -115,7 +115,7 @@ class AnchoredPopupsController extends State<AnchoredPopups> {
   }
 
   void _closeHoverOnScreenSizeChange() {
-    Size screenSize = MediaQueryData.fromWindow(WidgetsBinding.instance!.window).size;
+    Size screenSize = MediaQueryData.fromWindow(WidgetsBinding.instance.window).size;
     if (screenSize != _prevSize) {
       _currentPopupConfig = null;
     }
diff --git a/pubspec.yaml b/pubspec.yaml
index 6c2bbbd..638f797 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,11 +1,11 @@
 name: anchored_popups
 description: Shows popup panels and custom tooltips that are anchored to a Widget in the tree.
-version: 0.0.1+2
+version: 1.0.0+3
 homepage: https://github.com/gskinnerTeam/flutter_anchored_popups
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
-  flutter: ">=1.17.0"
+  sdk: ">=2.17.0 <3.0.0"
+  flutter: ">=3.0.0"
 
 dependencies:
   flutter: