diff --git a/.github/workflows/sphinx.yml b/.github/workflows/sphinx.yml
index 6809dfd..ae04f2b 100644
--- a/.github/workflows/sphinx.yml
+++ b/.github/workflows/sphinx.yml
@@ -12,11 +12,12 @@ jobs:
       - uses: actions/setup-python@v3
       - name: Install dependencies
         run: |
-
-          pip install sphinx sphinx_rtd_theme
+          pip install sphinx sphinx_rtd_theme poetry
+          poetry install
       - name: Sphinx build
         run: |
           cd docs
+          make clean
           make html
       - name: Deploy to Github Pages
         uses: peaceiris/actions-gh-pages@v3
@@ -24,5 +25,5 @@ jobs:
         with:
           publish_branch: gh-pages
           github_token: ${{ secrets.GITHUB_TOKEN }} # the default token which no need create
-          publish_dir: docs/build/html # the path of doc
+          publish_dir: docs/build/html # A source directory to deploy to GitHub Pages (the path of doc)
           force_orphan: true
diff --git a/docs/source/conf.py b/docs/source/conf.py
index cac6681..4ee9af8 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -4,8 +4,10 @@
 # https://www.sphinx-doc.org/en/master/usage/configuration.html
 import os
 import sys
+from pathlib import Path
+
 sys.path.insert(0, os.path.abspath('../..'))
-sys.path.insert(0, os.path.abspath('../..//pyga4'))
+sys.path.insert(0, os.path.abspath('../../pyga4'))
 
 # -- Project information -----------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
diff --git a/poetry.lock b/poetry.lock
index 1541679..061008a 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -126,6 +126,17 @@ ufo = ["fs (>=2.2.0,<3)"]
 unicode = ["unicodedata2 (>=15.0.0)"]
 woff = ["brotli (>=1.0.1)", "brotlicffi (>=0.8.0)", "zopfli (>=0.1.4)"]
 
+[[package]]
+name = "google-cloud"
+version = "0.34.0"
+description = "API Client library for Google Cloud"
+optional = false
+python-versions = "*"
+files = [
+    {file = "google-cloud-0.34.0.tar.gz", hash = "sha256:01430187cf56df10a9ba775dd547393185d4b40741db0ea5889301f8e7a9d5d3"},
+    {file = "google_cloud-0.34.0-py2.py3-none-any.whl", hash = "sha256:fb1ab7b0548fe44b3d538041f0a374505b7f990d448a935ea36649c5ccab5acf"},
+]
+
 [[package]]
 name = "kiwisolver"
 version = "1.4.5"
@@ -615,4 +626,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "8be11ea9fe096ef68e1cf0bde572fc79160cbf8a778aa985c9f274378a02ef3f"
+content-hash = "9986d74b1c28ea6b7a3bf6a2a619a157971b9aa2140a679405818a023c27f0dd"
diff --git a/pyproject.toml b/pyproject.toml
index 4ef6782..cd82932 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,8 @@ matplotlib = "3.6.2"
 pandas = "1.5.3"
 protobuf = "4.24.3"
 pycryptodome = "3.18.0"
-pyga4 = "0.1.0"
+google-cloud = "^0.34.0"
+
 
 [build-system]
 requires = ["poetry-core"]