diff --git a/lib/src/dart_formatter.dart b/lib/src/dart_formatter.dart
index 11b305d0..d12e5211 100644
--- a/lib/src/dart_formatter.dart
+++ b/lib/src/dart_formatter.dart
@@ -200,7 +200,7 @@ final class DartFormatter {
           source: stringSource,
           offset: token.offset - inputOffset,
           length: math.max(token.length, 1),
-          diagnosticCode: ParserErrorCode.UNEXPECTED_TOKEN,
+          diagnosticCode: ParserErrorCode.unexpectedToken,
           arguments: [token.lexeme],
         );
         throw FormatterException([error]);
diff --git a/pubspec.yaml b/pubspec.yaml
index 31ef62e2..de655f9b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.7.0
 
 dependencies:
-  analyzer: ^8.1.0
+  analyzer: ^8.2.0
   args: ^2.0.0
   collection: ^1.19.0
   package_config: ^2.1.0