diff --git a/docs/requirements.txt b/docs/requirements.txt
index bc88fe290..85696f8bc 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,4 @@
 sphinx>=5.0
 sphinxcontrib-bibtex>=2.5
-sphinxcontrib-applehelp
 sphinx_rtd_theme
 sphinxfortran