diff --git a/doc/requirements.txt b/doc/requirements.txt
index 535a77c1..9da8faa4 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,5 +1,5 @@
 pyside2
 numpy
 pyopengl
-sphinx==3.4.3
-sphinx_rtd_theme==0.5.1
+sphinx==3.5.4
+pydata_sphinx_theme==0.6.3
\ No newline at end of file
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 10d23bbc..41db21c3 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -106,7 +106,7 @@ autodoc_mock_imports = [
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'sphinx_rtd_theme'
+html_theme = 'pydata_sphinx_theme'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the