diff --git a/docs/requirements.txt b/docs/requirements.txt
index 5504f7f..6c1cf8f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 sphinx>=1.3
 sphinx-rtd-theme==0.4.3
-sphinx-autoapi==1.3.0
+sphinx-autoapi==3.4.0