diff --git a/pyproject.toml b/pyproject.toml
index 43fdd09db..821efb89a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,7 +64,8 @@ test = ["mne_bids[full]", "pytest >= 8", "pytest-cov", "pytest-sugar", "ruff"]
 # Dependencies for building the documentation
 doc = [
     "nilearn",
-    "sphinx",
+    # TODO: Remove pin once https://github.com/sphinx-doc/sphinx/issues/12589 is fixed
+    "sphinx!=7.4",
     "sphinx_gallery",
     "sphinx-copybutton",
     "pydata-sphinx-theme",