diff --git a/docs/requirements.txt b/docs/requirements.txt
index ccb0ddc2..67eb1e43 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -3,4 +3,4 @@ pyperclip==1.8.2
 sphinx_rtd_theme==1.0.0
 secretum_sphinx_theme==2022.2
 myst_parser
-sphinx-notfound-page
+sphinx-notfound-page==1.0.0