diff --git a/docs/cli.md b/docs/cli.md
index f6617f3..c800262 100644
--- a/docs/cli.md
+++ b/docs/cli.md
@@ -58,10 +58,10 @@ This feature is integrated with [spacy-partial-tagger](https://github.com/doccan
 
 ## Automatic Speech Recognition
 
-To use this feature, you need to install doccano-client as follows:
+To use this feature, you need to install whisper as follows:
 
 ```bash
-pip install doccano-client[whisper]
+pip install git+https://github.com/openai/whisper.git 
 ```
 
 In this feature, you can annotate audio file with OpenAI [Whisper](https://github.com/openai/whisper). For a list of available models, please see the official repository.
diff --git a/poetry.lock b/poetry.lock
index a739eef..8b40419 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1283,24 +1283,6 @@ python-versions = ">=3.6"
 [package.extras]
 watchmedo = ["PyYAML (>=3.10)"]
 
-[[package]]
-name = "whisper"
-version = "1.0"
-description = ""
-category = "main"
-optional = false
-python-versions = "*"
-develop = false
-
-[package.extras]
-dev = ["pytest"]
-
-[package.source]
-type = "git"
-url = "https://github.com/openai/whisper.git"
-reference = "main"
-resolved_reference = "d18e9ea5dd2ca57c697e8e55f9e654f06ede25d0"
-
 [[package]]
 name = "wrapt"
 version = "1.14.1"
@@ -1335,12 +1317,12 @@ docs = ["jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "jaraco.packaging (>=9)
 
 [extras]
 spacy = ["spacy", "spacy-partial-tagger", "tqdm"]
-whisper = ["whisper", "tqdm"]
+whisper = ["ffmpeg-python", "tqdm"]
 
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "d8f89e91c3a205dead912e506f793bb44ad4a9ab2a1fe7eeadded9a9ca8d0fec"
+content-hash = "1adf7f2ae26bfd5204c3d7002c7a16bfa45f4cd0e8722e538ed17c65bc24fd45"
 
 [metadata.files]
 attrs = []
@@ -1546,7 +1528,6 @@ urllib3 = []
 vcrpy = []
 wasabi = []
 watchdog = []
-whisper = []
 wrapt = []
 yarl = []
 zipp = []
diff --git a/pyproject.toml b/pyproject.toml
index b8d2b63..e2b9914 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,6 @@ spacy-partial-tagger = { version = "^0.9.1", optional = true }
 tqdm = { version = "^4.64.1", optional = true }
 pydantic = "^1.9.2"
 requests-toolbelt = "^0.9.1"
-whisper = {git = "https://github.com/openai/whisper.git", rev = "main", extras = ["whisper"]}
 ffmpeg-python = {version = "^0.2.0", extras = ["whisper"]}
 
 [tool.poetry.dev-dependencies]
@@ -48,7 +47,7 @@ mkdocstrings = {extras = ["python", "crystal"], version = "^0.19.0"}
 
 [tool.poetry.extras]
 spacy = ["spacy", "spacy-partial-tagger", "tqdm"]
-whisper = ["whisper", "ffmpeg-python", "tqdm"]
+whisper = ["ffmpeg-python", "tqdm"]
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]