diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e7eaad..eafc612 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## 未发布
+## 1.0.3(2026-07-30)
 
 `est_tokens` 解耦(issue #2):一个常量此前被派了两份对"保守"定义相反的差事——TPM 入场预扣(押多了只是慢,安全)与 usage 缺失时的用量兜底(按上界记账只会账单虚高)。本次把两者拆开。
 
diff --git a/pyproject.toml b/pyproject.toml
index 5406590..5fb200c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "polygateway"
-version = "1.0.2"
+version = "1.0.3"
 description = "PolyGateway：实验室统一的大语言模型（LLM/VLM/OCR）调度与中转库——多源、限流、重试、熔断、缓存、遥测"
 requires-python = ">=3.11"
 dependencies = [
diff --git a/src/polygateway/__init__.py b/src/polygateway/__init__.py
index ea0b2bd..af91836 100644
--- a/src/polygateway/__init__.py
+++ b/src/polygateway/__init__.py
@@ -31,7 +31,7 @@ from polygateway.types import (
     SourceConfig,
 )
 
-__version__ = "1.0.2"
+__version__ = "1.0.3"
 
 __all__ = [
     "DEFAULT_PROFILES",