diff --git a/dargon2/lib/src/native/dart_lib_loader.dart b/dargon2/lib/src/native/dart_lib_loader.dart
index b818041..447c3e7 100644
--- a/dargon2/lib/src/native/dart_lib_loader.dart
+++ b/dargon2/lib/src/native/dart_lib_loader.dart
@@ -8,8 +8,6 @@ import 'dart:io';
 import 'dart:isolate';
 
 import 'package:dargon2_core/dargon2_core.dart';
-// ignore: deprecated_member_use
-import 'dart:cli';
 
 /// The Dylib Loader for any Dart native apps, regardless of platform. Loads the dylib
 /// from the given path, based off a conditional import on dart:ui
@@ -31,7 +29,7 @@ class DartLibLoader implements LibLoader {
   String getPath() {
     final rootLibrary = 'package:dargon2/dargon2.dart';
     // ignore: deprecated_member_use
-    var rootPath = waitFor(Isolate.resolvePackageUri(Uri.parse(rootLibrary)))!
+    var rootPath = Isolate.resolvePackageUriSync(Uri.parse(rootLibrary))!
         .resolve('src/blobs/')
         .toFilePath(windows: Platform.isWindows);
     if (Platform.isMacOS) return '${rootPath}libargon2-darwin.dylib';
diff --git a/dargon2/pubspec.yaml b/dargon2/pubspec.yaml
index 66fc75f..9a33461 100644
--- a/dargon2/pubspec.yaml
+++ b/dargon2/pubspec.yaml
@@ -5,7 +5,7 @@ homepage: https://github.com/tmthecoder/dargon2/blob/main/dargon2
 repository: https://github.com/tmthecoder/dargon2
 
 environment:
-  sdk: '>=2.15.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 
 dependencies:
   dargon2_core: '^2.1.0'