diff --git a/poetry.lock b/poetry.lock
index ed01082..13dafb2 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -815,7 +815,7 @@ python-versions = "*"
 
 [[package]]
 name = "sphinx"
-version = "4.3.0"
+version = "4.3.1"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -1092,7 +1092,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "6531afd6d117b3775fc0f4f820f9237ca1ef92f2e055239c7b590da889610b87"
+content-hash = "2b8af1f019c0c07aaa952b4c68d7af468e49194f76eb3d4fc887cd7b6c6f80bc"
 
 [metadata.files]
 alabaster = [
@@ -1632,8 +1632,8 @@ snowballstemmer = [
     {file = "snowballstemmer-2.2.0.tar.gz", hash = "sha256:09b16deb8547d3412ad7b590689584cd0fe25ec8db3be37788be3810cbf19cb1"},
 ]
 sphinx = [
-    {file = "Sphinx-4.3.0-py3-none-any.whl", hash = "sha256:7e2b30da5f39170efcd95c6270f07669d623c276521fee27ad6c380f49d2bf5b"},
-    {file = "Sphinx-4.3.0.tar.gz", hash = "sha256:6d051ab6e0d06cba786c4656b0fe67ba259fe058410f49e95bee6e49c4052cbf"},
+    {file = "Sphinx-4.3.1-py3-none-any.whl", hash = "sha256:048dac56039a5713f47a554589dc98a442b39226a2b9ed7f82797fcb2fe9253f"},
+    {file = "Sphinx-4.3.1.tar.gz", hash = "sha256:32a5b3e9a1b176cc25ed048557d4d3d01af635e6b76c5bc7a43b0a34447fbd45"},
 ]
 sphinx-autobuild = [
     {file = "sphinx-autobuild-2021.3.14.tar.gz", hash = "sha256:de1ca3b66e271d2b5b5140c35034c89e47f263f2cd5db302c9217065f7443f05"},
diff --git a/pyproject.toml b/pyproject.toml
index fec6f98..6a42fea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ pre-commit = "^2.15.0"
 pytest-django = "^4.1.0"
 pygments = "^2.10.0"
 xdoctest = "^0.15.10"
-sphinx = "^4.3.0"
+sphinx = "^4.3.1"
 sphinx-autobuild = "^2021.3.14"
 darglint = "^1.8.1"
 flake8-docstrings = "^1.5.0"