diff --git a/README.md b/README.md
index 089c209..1a2b20d 100644
--- a/README.md
+++ b/README.md
@@ -45,9 +45,7 @@
 - `--homework / --no-homework`: [default: homework]
 - `-j, --jobs INTEGER`: [default: 8]
 - `-l, --language [en|zh]`: [default: en]
-- `--log-level [NOTSET|DEBUG|INFO|WARNING|ERROR|CRITICAL]`: [env var: LOG_LEVEL] [default: INFO]
-- `--install-completion`: Install completion for the current shell.
-- `--show-completion`: Show completion for the current shell, to copy it or customize the installation.
+- `--log-level [NOTSET|DEBUG|INFO|WARNING|ERROR|CRITICAL]`: [env var: LOG_LEVEL; default: INFO]
 - `--help`: Show this message and exit.
 
 ## Features
diff --git a/poetry.lock b/poetry.lock
index 8e798cf..96523cf 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -957,6 +957,22 @@
 reference = "mirrors"
 
 [[package]]
+name = "shellingham"
+version = "1.4.0"
+description = "Tool to Detect Surrounding Shell"
+optional = false
+python-versions = "!=3.0,!=3.1,!=3.2,!=3.3,>=2.6"
+files = [
+    {file = "shellingham-1.4.0-py2.py3-none-any.whl", hash = "sha256:536b67a0697f2e4af32ab176c00a50ac2899c5a05e0d8e2dadac8e58888283f9"},
+    {file = "shellingham-1.4.0.tar.gz", hash = "sha256:4855c2458d6904829bd34c299f11fdeed7cfefbf8a2c522e4caea6cd76b3171e"},
+]
+
+[package.source]
+type = "legacy"
+url = "https://pypi.tuna.tsinghua.edu.cn/simple"
+reference = "mirrors"
+
+[[package]]
 name = "six"
 version = "1.16.0"
 description = "Python 2 and 3 compatibility utilities"
@@ -1034,6 +1050,26 @@
 reference = "mirrors"
 
 [[package]]
+name = "typer-cli"
+version = "0.0.14"
+description = "Run Typer scripts with completion, without having to create a package, using Typer CLI."
+optional = false
+python-versions = ">=3.7"
+files = []
+develop = false
+
+[package.dependencies]
+colorama = ">=0.4.3,<=0.5.0"
+shellingham = ">=1.3.2,<=1.5.0"
+typer = ">=0.4.0,<=0.9.0"
+
+[package.source]
+type = "git"
+url = "https://github.com/Patarimi/typer-cli.git"
+reference = "HEAD"
+resolved_reference = "f44b547a0b9ea71e5c7b2dc7d4c1ab1212394e5e"
+
+[[package]]
 name = "typing-extensions"
 version = "4.8.0"
 description = "Backported and Experimental Type Hints for Python 3.8+"
@@ -1137,4 +1173,4 @@
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.11,<3.13"
-content-hash = "d73538c06a761d8256b7fb16a735dc799b83357b6c395b8ecdcd71680af55289"
+content-hash = "135484ca996766c8739177cea702ba0b150b7ae2c7204cf4410490e282995acb"
diff --git a/pyproject.toml b/pyproject.toml
index f102b0a..4f6a397 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,6 +30,7 @@
 isort = "^5.12.0"
 nuitka = "^1.8.4"
 pyinstaller = "^6.0.0"
+typer-cli = {git = "https://github.com/Patarimi/typer-cli.git"}
 
 [tool.poetry.scripts]
 thu-learn-downloader = "thu_learn_downloader.main:app"