diff --git a/{{cookiecutter.project_slug}}/requirements/local.txt b/{{cookiecutter.project_slug}}/requirements/local.txt
index 9b853557..b6a7e543 100644
--- a/{{cookiecutter.project_slug}}/requirements/local.txt
+++ b/{{cookiecutter.project_slug}}/requirements/local.txt
@@ -20,7 +20,7 @@ pytest-sugar==0.9.4  # https://github.com/Frozenball/pytest-sugar
 
 # Documentation
 # ------------------------------------------------------------------------------
-sphinx==3.5.1  # https://github.com/sphinx-doc/sphinx
+sphinx==3.5.3  # https://github.com/sphinx-doc/sphinx
 sphinx-autobuild==2021.3.14 # https://github.com/GaretJax/sphinx-autobuild
 
 # Code quality