diff --git a/docs/conf.py b/docs/conf.py
index 390f576219..54536bf056 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -8,7 +8,10 @@
 import sphinx.builders.latex
 import sphinx.builders.texinfo
 import sphinx.builders.text
+import sphinx.domains.c  # noqa: F401
+import sphinx.domains.cpp  # noqa: F401
 import sphinx.ext.autodoc  # noqa: F401
+import sphinx.ext.intersphinx  # noqa: F401
 import urllib3.exceptions  # noqa: F401
 
 typing.TYPE_CHECKING = True
diff --git a/requirements-docs.txt b/requirements-docs.txt
index ed371ed9c9..15f226aac7 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,5 +1,5 @@
 gevent
 shibuya
-sphinx==7.2.6
+sphinx
 sphinx-autodoc-typehints[type_comments]>=1.8.0
 typing-extensions