diff --git a/docs/requirements.txt b/docs/requirements.txt
index ee82565..69d9d16 100755
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
-sphinx==4.0.2
+sphinx==4.5.0
 sphinx_rtd_theme==0.5.0
 regex