diff --git a/CHANGELOG.md b/CHANGELOG.md
index f07a46799d..3a9c24eca2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Fixes
+
+- Align span spec for serialize ops ([#1024](https://github.com/getsentry/sentry-dart/pull/1024))
+
 ## 6.11.0
 
 ### Fixes
diff --git a/dio/lib/src/sentry_transformer.dart b/dio/lib/src/sentry_transformer.dart
index b886305477..ae77084405 100644
--- a/dio/lib/src/sentry_transformer.dart
+++ b/dio/lib/src/sentry_transformer.dart
@@ -3,6 +3,8 @@ import 'package:sentry/sentry.dart';
 
 /// A transformer which wraps transforming in spans
 class SentryTransformer implements Transformer {
+  static const _serializeOp = 'serialize.http.client';
+
   // ignore: public_member_api_docs
   SentryTransformer({required Transformer transformer, Hub? hub})
       : _hub = hub ?? HubAdapter(),
@@ -14,7 +16,7 @@ class SentryTransformer implements Transformer {
   @override
   Future<String> transformRequest(RequestOptions options) async {
     final span = _hub.getSpan()?.startChild(
-          'serialize',
+          _serializeOp,
           description: '${options.method} ${options.uri}',
         );
     String? request;
@@ -38,7 +40,7 @@ class SentryTransformer implements Transformer {
     ResponseBody response,
   ) async {
     final span = _hub.getSpan()?.startChild(
-          'serialize',
+          _serializeOp,
           description: '${options.method} ${options.uri}',
         );
     dynamic transformedResponse;
diff --git a/dio/test/sentry_transformer_test.dart b/dio/test/sentry_transformer_test.dart
index 554933159c..3e6a8c36e4 100644
--- a/dio/test/sentry_transformer_test.dart
+++ b/dio/test/sentry_transformer_test.dart
@@ -34,7 +34,7 @@ void main() {
       final span = tracer.children.first;
 
       expect(span.status, SpanStatus.ok());
-      expect(span.context.operation, 'serialize');
+      expect(span.context.operation, 'serialize.http.client');
       expect(span.context.description, 'GET foo');
     });
 
@@ -56,7 +56,7 @@ void main() {
       final span = tracer.children.first;
 
       expect(span.status, SpanStatus.internalError());
-      expect(span.context.operation, 'serialize');
+      expect(span.context.operation, 'serialize.http.client');
       expect(span.context.description, 'GET foo');
       expect(span.finished, true);
     });
@@ -80,7 +80,7 @@ void main() {
       final span = tracer.children.first;
 
       expect(span.status, SpanStatus.ok());
-      expect(span.context.operation, 'serialize');
+      expect(span.context.operation, 'serialize.http.client');
       expect(span.context.description, 'GET foo');
     });
     test('transformResponse finish span if errored request', () async {
@@ -104,7 +104,7 @@ void main() {
       final span = tracer.children.first;
 
       expect(span.status, SpanStatus.internalError());
-      expect(span.context.operation, 'serialize');
+      expect(span.context.operation, 'serialize.http.client');
       expect(span.context.description, 'GET foo');
       expect(span.finished, true);
     });
diff --git a/flutter/lib/src/sentry_asset_bundle.dart b/flutter/lib/src/sentry_asset_bundle.dart
index c17ed96ba9..fd1e62c595 100644
--- a/flutter/lib/src/sentry_asset_bundle.dart
+++ b/flutter/lib/src/sentry_asset_bundle.dart
@@ -234,7 +234,7 @@ class SentryAssetBundle implements AssetBundle {
     ISentrySpan? outerSpan,
   ) async {
     final span = outerSpan?.startChild(
-      'serialize',
+      'serialize.file.read',
       description: 'parsing "$key" to "$T"',
     );
     T data;
diff --git a/flutter/test/sentry_asset_bundle_test.dart b/flutter/test/sentry_asset_bundle_test.dart
index 35f46aba9c..281e3ebce3 100644
--- a/flutter/test/sentry_asset_bundle_test.dart
+++ b/flutter/test/sentry_asset_bundle_test.dart
@@ -283,7 +283,7 @@ void main() {
         expect(span.status, SpanStatus.internalError());
         expect(span.finished, true);
         expect(span.throwable, isA<Exception>());
-        expect(span.context.operation, 'serialize');
+        expect(span.context.operation, 'serialize.file.read');
         expect(
           span.context.description,
           'parsing "resources/test.txt" to "String"',
@@ -325,7 +325,7 @@ void main() {
 
         expect(span.status, SpanStatus.ok());
         expect(span.finished, true);
-        expect(span.context.operation, 'serialize');
+        expect(span.context.operation, 'serialize.file.read');
         expect(
           span.context.description,
           'parsing "resources/test.txt" to "String"',