diff --git a/docs/requirements.txt b/docs/requirements.txt
index 4fe49c8..b377bce 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 py-moneyed==1.2
-sphinx==3.5.4
+sphinx==4.3.2
 sphinx-autodoc-typehints==1.12.0
 sphinx-rtd-theme==0.5.2