diff --git a/docs/requirements.txt b/docs/requirements.txt
index c6e98b2..21b1e53 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -2,5 +2,5 @@
 
 myst-parser>=5.1.0,<6
 sphinx>=9,<10
-sphinx-autoapi>=3.8.1,<4
+sphinx-autoapi>=3.9.0,<4
 sphinx-rtd-theme>=3.1.0,<4