diff --git a/packages/freezed/lib/builder.dart b/packages/freezed/lib/builder.dart
index eaece8e7..81ff54c1 100644
--- a/packages/freezed/lib/builder.dart
+++ b/packages/freezed/lib/builder.dart
@@ -6,16 +6,26 @@ import 'src/freezed_generator.dart';
 
 /// Builds generators for `build_runner` to run
 Builder freezed(BuilderOptions options) {
-  return PartBuilder(
-    [FreezedGenerator(Freezed.fromJson(options.config))],
-    formatOutput: options.config['format'] == false ? (str) => str : null,
-    '.freezed.dart',
-    header: '''
+  final generators = [FreezedGenerator(Freezed.fromJson(options.config))];
+  const generatedExtension = '.freezed.dart';
+  const header = '''
 // coverage:ignore-file
 // GENERATED CODE - DO NOT MODIFY BY HAND
 // ignore_for_file: type=lint
 // ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
-    ''',
-    options: options,
-  );
+    ''';
+  if (options.config['format'] == false) {
+    return PartBuilder(
+      generators,
+      generatedExtension,
+      formatOutput:(code, languageVersion) => code,
+      header: header,
+    );
+  } else {
+    return PartBuilder(
+      generators,
+      generatedExtension,
+      header: header,
+    );
+  }
 }
diff --git a/packages/freezed/lib/src/ast.dart b/packages/freezed/lib/src/ast.dart
index 9c3848b2..61fd7b31 100644
--- a/packages/freezed/lib/src/ast.dart
+++ b/packages/freezed/lib/src/ast.dart
@@ -56,8 +56,7 @@ extension ClassX on ClassDeclaration {
 
 extension ConstructorX on ConstructorDeclaration {
   String get fullName {
-    // ignore: deprecated_member_use, latest analyzer with enclosingElement3 not available in stable channel
-    final classElement = declaredElement!.enclosingElement;
+    final classElement = declaredElement!.enclosingElement3;
 
     var generics =
         classElement.typeParameters.map((e) => '\$${e.name}').join(', ');
@@ -65,15 +64,13 @@ extension ConstructorX on ConstructorDeclaration {
       generics = '<$generics>';
     }
 
-    // ignore: deprecated_member_use, latest analyzer with enclosingElement3 not available in stable channel
-    final className = classElement.enclosingElement.name;
+    final className = classElement.enclosingElement3.name;
 
     return name == null ? '$className$generics' : '$className$generics.$name';
   }
 
   String get escapedName {
-    // ignore: deprecated_member_use, latest analyzer with enclosingElement3 not available in stable channel
-    final classElement = declaredElement!.enclosingElement;
+    final classElement = declaredElement!.enclosingElement3;
 
     var generics =
         classElement.typeParameters.map((e) => '\$${e.name}').join(', ');
diff --git a/packages/freezed/lib/src/tools/recursive_import_locator.dart b/packages/freezed/lib/src/tools/recursive_import_locator.dart
index e4f76298..10339f64 100644
--- a/packages/freezed/lib/src/tools/recursive_import_locator.dart
+++ b/packages/freezed/lib/src/tools/recursive_import_locator.dart
@@ -31,8 +31,14 @@ extension FindAllAvailableTopLevelElements on LibraryElement {
     yield* topLevelElements;
 
     final librariesToCheck = checkExports
-        ? libraryExports.map(_LibraryDirectives.fromExport).nonNulls
-        : libraryImports.map(_LibraryDirectives.fromImport).nonNulls;
+        ? units
+            .expand((e) => e.libraryExports)
+            .map(_LibraryDirectives.fromExport)
+            .nonNulls
+        : units
+            .expand((e) => e.libraryImports)
+            .map(_LibraryDirectives.fromImport)
+            .nonNulls;
 
     for (final directive in librariesToCheck) {
       if (!visitedLibraryPaths.add(directive.key)) {
diff --git a/packages/freezed/lib/src/tools/type.dart b/packages/freezed/lib/src/tools/type.dart
index 61444674..2d551c3a 100644
--- a/packages/freezed/lib/src/tools/type.dart
+++ b/packages/freezed/lib/src/tools/type.dart
@@ -41,7 +41,9 @@ String resolveFullTypeStringFrom(
   LibraryElement originLibrary,
   DartType type,
 ) {
-  final owner = originLibrary.prefixes.firstWhereOrNull(
+  final owner = originLibrary.units
+      .expand((e) => e.libraryImportPrefixes)
+      .firstWhereOrNull(
     (e) {
       return e.imports.any((l) {
         return l.importedLibrary!.anyTransitiveExport((library) {
diff --git a/packages/freezed/pubspec.yaml b/packages/freezed/pubspec.yaml
index 8dde2f23..f906970a 100644
--- a/packages/freezed/pubspec.yaml
+++ b/packages/freezed/pubspec.yaml
@@ -10,16 +10,16 @@ environment:
   sdk: ">=3.0.0 <4.0.0"
 
 dependencies:
-  analyzer: ">=6.5.0 <7.0.0"
+  analyzer: ">=6.5.0 <8.0.0"
   build: ^2.3.1
   build_config: ^1.1.0
   collection: ^1.15.0
   meta: ^1.9.1
-  source_gen: ^1.4.0
+  source_gen: ^2.0.0
   freezed_annotation: ^2.4.4
   json_annotation: ^4.8.0
   # Indirect dependency, but fixes a compiler error when using `pub downgrade`
-  dart_style: ^2.3.6
+  dart_style: ^3.0.0
 
 dev_dependencies:
   json_serializable: ^6.3.2