diff --git a/requirements/devel.txt b/requirements/devel.txt
index bada1ffb..44b22546 100644
--- a/requirements/devel.txt
+++ b/requirements/devel.txt
@@ -14,12 +14,6 @@ pytest-timeout
 
 sphinx
 sphinxcontrib-jquery
-sphinxcontrib-applehelp
-sphinxcontrib-devhelp
-sphinxcontrib-htmlhelp
-sphinxcontrib-jsmath
-sphinxcontrib-qthelp
-sphinxcontrib-serializinghtml
 Jinja2
 markupsafe
 doc2dash