diff --git a/docs/requirements-rtd.txt b/docs/requirements-rtd.txt
index 53aff798..baa719cd 100644
--- a/docs/requirements-rtd.txt
+++ b/docs/requirements-rtd.txt
@@ -1,7 +1,6 @@
 --only-binary PyQt5,numpy
 
 setuptools
-sphinx~=4.2.0
 sphinx-rtd-theme
 PyQt5
 AnyQt
@@ -9,4 +8,4 @@ AnyQt
 # sphinx pins docutils version, but the installation in the RTD worker/config
 # overrides it because docutils is also in our dependencies.
 # https://docs.readthedocs.io/en/stable/faq.html#i-need-to-install-a-package-in-a-environment-with-pinned-versions
--e .
\ No newline at end of file
+-e .