diff --git a/docs/requirements.txt b/docs/requirements.txt
index 5cf29031..3dcbb516 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==3.5.4
+sphinx==7.0.1
 pangeo-sphinx-book-theme==0.2
 myst-parser==0.13.6
 myst-nb==0.12.3