diff --git a/doc/requirements.txt b/doc/requirements.txt
index 29ae83b0..f163d681 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,4 @@
-Sphinx >= 5.0, <7.0
+Sphinx
 sphinx_rtd_theme
 # funcsigs required by mock, which apparently does not have its dependencies
 # setup correctly.