diff --git a/coconut/constants.py b/coconut/constants.py
index 2f7179748..4616acf5d 100644
--- a/coconut/constants.py
+++ b/coconut/constants.py
@@ -576,7 +576,7 @@ def str_to_bool(boolstr, default=False):
         "sphinx",
         "pygments",
         "myst-parser",
-        "sphinx_bootstrap_theme",
+        "pydata-sphinx-theme",
     ),
     "tests": (
         "pytest",
@@ -605,7 +605,7 @@ def str_to_bool(boolstr, default=False):
     ("dataclasses", "py==36"): (0, 8),
     ("aenum", "py<34"): (3,),
     "sphinx": (4, 2),
-    "sphinx_bootstrap_theme": (0, 8),
+    "pydata-sphinx-theme": (0, 7, 1),
     "myst-parser": (0, 15),
     # don't upgrade this until https://github.com/jupyter/jupyter_console/issues/241 is fixed
     ("jupyter-client", "py3"): (6, 1, 12),
diff --git a/conf.py b/conf.py
index ee3d31a73..fee9fb822 100644
--- a/conf.py
+++ b/conf.py
@@ -30,7 +30,7 @@
 )
 from coconut.util import univ_open
 
-import sphinx_bootstrap_theme
+import pydata_sphinx_theme  # NOQA
 import myst_parser  # NOQA
 
 # -----------------------------------------------------------------------------------------------------------------------
@@ -57,8 +57,7 @@
 version = VERSION
 release = version_str_tag
 
-html_theme = "bootstrap"
-html_theme_path = sphinx_bootstrap_theme.get_html_theme_path()
+html_theme = "pydata_sphinx_theme"
 html_theme_options = {
 }