diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5181631..2381c8b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.1.21](https://github.com/liblaf/thu-learn-downloader/compare/v0.1.20...v0.1.21) (2023-10-16)
+
+### Bug Fixes
+
+- **pre-commit:** update pre-commit hooks version ([899f58d](https://github.com/liblaf/thu-learn-downloader/commit/899f58dcbcdd6f308d47e97c677be9e457811b72))
+- sort documents by title before upload time ([80c8bfd](https://github.com/liblaf/thu-learn-downloader/commit/80c8bfd4b7255d8f58e3fed773644a460c36f962))
+
 ## [0.1.20](https://github.com/liblaf/thu-learn-downloader/compare/v0.1.19...v0.1.20) (2023-10-10)
 
 ### Bug Fixes
diff --git a/pyproject.toml b/pyproject.toml
index 4f6a397..6c9bbe1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@
 name = "thu-learn-downloader"
 readme = "README.md"
 repository = "https://github.com/liblaf/thu-learn-downloader"
-version = "0.1.20"
+version = "0.1.21"
 
 [tool.poetry.dependencies]
 beautifulsoup4 = "^4.12.2"