diff --git a/pyproject.toml b/pyproject.toml
index 8db91a3..a940a3e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,10 +36,10 @@ Documentation = 'https://aiida-pseudo.readthedocs.io'
 
 [project.optional-dependencies]
 docs = [
-    'sphinx~=4.1',
+    'sphinx~=6.0',
     'sphinx-copybutton~=0.5.0',
-    'sphinx-book-theme~=0.3.2',
-    'sphinx-autoapi~=1.8.1',
+    'sphinx-book-theme~=1.0',
+    'sphinx-autoapi~=3.0',
     'sphinx-click~=4.0',
 ]
 pre-commit = [