diff --git a/lib/build/geo_feature_builder.dart b/lib/build/geo_feature_builder.dart
index 50e51cd..c24b70a 100644
--- a/lib/build/geo_feature_builder.dart
+++ b/lib/build/geo_feature_builder.dart
@@ -40,7 +40,7 @@ class GeoFeatureBuilder implements Builder{
         ..body.add(buildGeoFeatureClass(propertiesToExtract))
         ..body.add(buildGeoCoderClass(geoJSONData, propertiesToExtract))
       );
-      final code = DartFormatter(fixes: StyleFix.all).format(library.accept(
+      final code = DartFormatter(languageVersion: DartFormatter.latestLanguageVersion).format(library.accept(
         DartEmitter(allocator: Allocator()),
       ).toString());
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 56177c2..c2a6d18 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -9,13 +9,13 @@ environment:
 dependencies:
   latlong2: ^0.9.0
   flatbush_dart: ^1.2.2
-  build: ^2.4.1
+  build: ^3.0.0
   code_builder: ^4.7.0
-  dart_style: ^2.3.0
+  dart_style: ^3.1.1
   recase: ^4.1.0
 
 dev_dependencies:
-  lints: ^2.0.0
+  lints: ^6.0.0
   build_runner: any
-  build_test: ^2.2.1
+  build_test: ^3.3.0
   test: ^1.24.8
\ No newline at end of file