diff --git a/docs/requirements.txt b/docs/requirements.txt
index 420ef83..a8a8ada 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -5,4 +5,4 @@ sphinx-copybutton==0.5.1
 enum-tools[sphinx]==0.9.0.post1
 geojson==3.0.1
 geopandas==0.12.2
-fiona==1.9.1
+fiona==1.9.5