diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 0631375c..8c4f9da2 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,9 +1,9 @@
 version: 2
 
 build:
-  os: "ubuntu-20.04"
+  os: "ubuntu-24.04"
   tools:
-    python: "3.8"
+    python: "3.12"
 
 python:
   install:
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7ec1624a..d95272ce 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,8 +1,8 @@
 sphinx>=4.0.2
 recommonmark
-sphinx-rtd-theme
+sphinx-book-theme
 sphinx_markdown_tables
 sphinx-argparse
 myst-parser
-deepmodeling-sphinx
+deepmodeling-sphinx>=0.3.0
 .
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 2bdcb916..a5f2f9fa 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -14,9 +14,7 @@
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
 
-import sphinx_rtd_theme
 extensions = ["deepmodeling_sphinx",
-    'sphinx_rtd_theme',
     'sphinx.ext.duration',
     'sphinx.ext.doctest',
     'sphinx.ext.autodoc',
@@ -34,7 +32,7 @@
 # -- Options for HTML output -------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
-html_theme = 'sphinx_rtd_theme'
+html_theme = 'sphinx_book_theme'
 html_logo = 'DeepFlameLOGO.png'