diff --git a/poetry.lock b/poetry.lock
index 3e725cf..c91657c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -753,7 +753,7 @@ python-versions = "*"
 
 [[package]]
 name = "sphinx"
-version = "4.0.3"
+version = "4.1.0"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -1015,7 +1015,7 @@ testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "0679460cdf8719b4a0f366919f9cc421eb9a3c24e5302d9ad2c0bbe94eec54c1"
+content-hash = "30fc293cb8e9ac94a1b732f5185375c98f9b1acc930aedb970c2acc48bd4497d"
 
 [metadata.files]
 alabaster = [
@@ -1508,8 +1508,8 @@ snowballstemmer = [
     {file = "snowballstemmer-2.1.0.tar.gz", hash = "sha256:e997baa4f2e9139951b6f4c631bad912dfd3c792467e2f03d7239464af90e914"},
 ]
 sphinx = [
-    {file = "Sphinx-4.0.3-py3-none-any.whl", hash = "sha256:5747f3c855028076fcff1e4df5e75e07c836f0ac11f7df886747231092cfe4ad"},
-    {file = "Sphinx-4.0.3.tar.gz", hash = "sha256:dff357e6a208eb7edb2002714733ac21a9fe597e73609ff417ab8cf0c6b4fbb8"},
+    {file = "Sphinx-4.1.0-py3-none-any.whl", hash = "sha256:51028bb0d3340eb80bcc1a2d614e8308ac78d226e6b796943daf57920abc1aea"},
+    {file = "Sphinx-4.1.0.tar.gz", hash = "sha256:4219f14258ca5612a0c85ed9b7222d54da69724d7e9dd92d1819ad1bf65e1ad2"},
 ]
 sphinx-autobuild = [
     {file = "sphinx-autobuild-2021.3.14.tar.gz", hash = "sha256:de1ca3b66e271d2b5b5140c35034c89e47f263f2cd5db302c9217065f7443f05"},
diff --git a/pyproject.toml b/pyproject.toml
index 76dd5cc..4f61c33 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ safety = "^1.10.3"
 mypy = "^0.910"
 typeguard = "^2.12.1"
 xdoctest = {extras = ["colors"], version = "^0.15.5"}
-sphinx = "^4.0.3"
+sphinx = "^4.1.0"
 sphinx-autobuild = "^2021.3.14"
 pre-commit = "^2.13.0"
 flake8 = "^3.9.2"