diff --git a/docs/requirements.txt b/docs/requirements.txt
index 83a3d9a6..d78c3d5d 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 alabaster==0.7.12
-Sphinx==3.5.2
+Sphinx==3.5.3
 sphinx-rtd-theme==0.5.1