diff --git a/.github/workflows/ci-pipe-langdetect.yml b/.github/workflows/ci-pipe-langdetect.yml
new file mode 100644
index 00000000..7290e68c
--- /dev/null
+++ b/.github/workflows/ci-pipe-langdetect.yml
@@ -0,0 +1,35 @@
+on:
+  pull_request:
+    branches: [ main ]
+    types:
+      - labeled
+      - synchronize
+
+jobs:
+  ci-langdetect:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get PR Labels
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          PR_LABELS=$(gh pr view https://github.com/${{ github.repository }}/pull/${{ github.event.pull_request.number }} --json labels --jq '[.labels[].name]')
+          echo "$PR_LABELS"
+          echo "PR_LABELS=$PR_LABELS" >> $GITHUB_ENV
+      - name: Checkout
+        if: contains(env.PR_LABELS, 'ci-langdetect')
+        uses: actions/checkout@v2
+      - name: Set up Python 3.7
+        if: contains(env.PR_LABELS, 'ci-langdetect')
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+      - name: Install dependencies
+        if: contains(env.PR_LABELS, 'ci-langdetect')
+        run: |
+          python -m pip install --upgrade pip
+          pip install pytest tox
+      - name: Run Test
+        if: contains(env.PR_LABELS, 'ci-langdetect')
+        run: |
+          tox -e langdetect
\ No newline at end of file
diff --git a/README.md b/README.md
index c66256bd..1b6275b4 100644
--- a/README.md
+++ b/README.md
@@ -304,13 +304,13 @@ Lang Detect API. Thanks to awesome work from [FastText](https://fasttext.cc/docs
 Install extend dependencies and models
 
     ```bash
-    $ pip install underthesea[lang-detect]
+    $ pip install underthesea[langdetect]
     ```
 
 Usage examples in script
 
     ```python
-    >>> from underthesea.pipeline.lang_detect import lang_detect
+    >>> from underthesea import lang_detect
     
     >>> lang_detect("Cựu binh Mỹ trả nhật ký nhẹ lòng khi thấy cuộc sống hòa bình tại Việt Nam")
     vi
diff --git a/setup.py b/setup.py
index 04e0bd94..bf3c71d2 100644
--- a/setup.py
+++ b/setup.py
@@ -43,8 +43,8 @@
     'prompt': [
         'openai'
     ],
-    'lang-detect': [
-        'fasttext   '
+    'langdetect': [
+        'fasttext'
     ]
 }
 setup(
diff --git a/tox.ini b/tox.ini
index 1ebd3500..0746d4b6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = traditional,deep,prompt
+envlist = traditional,deep,prompt,langdetect
 
 [testenv:traditional]
 basepython = python3.7
@@ -62,8 +62,23 @@ setenv =
     OPENAI_API_KEY = {env:OPENAI_API_KEY:}
 
 commands =
-    ; Modules with deep learning
+    ; Modules with prompt
     pip install -e .[prompt]
 
-    ; ner module
-    python -m unittest tests.pipeline.classification.test_prompt
\ No newline at end of file
+    ; prompt module
+    python -m unittest tests.pipeline.classification.test_prompt
+
+[testenv:langdetect]
+basepython = python3.7
+deps=
+    pip>=20.3
+
+setenv =
+    PYTHONPATH = {toxinidir}:{toxinidir}/underthesea
+
+commands =
+    ; install dependencies
+    pip install -e .[langdetect]
+
+    ; lang_detect module
+    python -m unittest tests.pipeline.lang_detect.test_lang_detect
\ No newline at end of file
diff --git a/underthesea/cli.py b/underthesea/cli.py
index 080cce4b..b322c54f 100644
--- a/underthesea/cli.py
+++ b/underthesea/cli.py
@@ -96,6 +96,7 @@ def info():
     print("            classify : OK")
     print("           sentiment : OK")
     print("    dependency_parse : OK")
+    print("         lang_detect : OK")
     print("           resources : OK")