diff --git a/requirements/requirements-dev.in b/requirements/requirements-dev.in
index a06c1f062..bfe4cbcb8 100644
--- a/requirements/requirements-dev.in
+++ b/requirements/requirements-dev.in
@@ -10,3 +10,6 @@ pre-commit
 cogapp
 semver
 codespell
+
+# https://github.com/Aider-AI/aider/issues/3391
+sphinx<8.2
\ No newline at end of file