diff --git a/poetry.lock b/poetry.lock
index c88fe7e..4b7664c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -858,7 +858,7 @@ python-versions = "*"
 
 [[package]]
 name = "sphinx"
-version = "3.5.1"
+version = "3.5.2"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -1123,7 +1123,7 @@ test = ["pytest", "pytest-cov"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "bae862b3f2c2b62ed8f5f8010a8ab5488b53995c46dfcf1a1109aa6aaf5d064f"
+content-hash = "52b0206567e8ef0f89cac2e5c02c824bffb8625978803c6515eef6afbde93962"
 
 [metadata.files]
 alabaster = [
@@ -1698,8 +1698,8 @@ snowballstemmer = [
     {file = "snowballstemmer-2.0.0.tar.gz", hash = "sha256:df3bac3df4c2c01363f3dd2cfa78cce2840a79b9f1c2d2de9ce8d31683992f52"},
 ]
 sphinx = [
-    {file = "Sphinx-3.5.1-py3-none-any.whl", hash = "sha256:e90161222e4d80ce5fc811ace7c6787a226b4f5951545f7f42acf97277bfc35c"},
-    {file = "Sphinx-3.5.1.tar.gz", hash = "sha256:11d521e787d9372c289472513d807277caafb1684b33eb4f08f7574c405893a9"},
+    {file = "Sphinx-3.5.2-py3-none-any.whl", hash = "sha256:ef64a814576f46ec7de06adf11b433a0d6049be007fefe7fd0d183d28b581fac"},
+    {file = "Sphinx-3.5.2.tar.gz", hash = "sha256:672cfcc24b6b69235c97c750cb190a44ecd72696b4452acaf75c2d9cc78ca5ff"},
 ]
 sphinx-autobuild = [
     {file = "sphinx-autobuild-2020.9.1.tar.gz", hash = "sha256:4b184a7db893f2100bbd831991ae54ca89167a2b9ce68faea71eaa9e37716aed"},
diff --git a/pyproject.toml b/pyproject.toml
index 4b9ef47..ffb72cb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ reorder-python-imports = "^2.4.0"
 pre-commit = "^2.10.1"
 pygments = "^2.8.1"
 xdoctest = "^0.15.4"
-sphinx = "^3.5.1"
+sphinx = "^3.5.2"
 sphinx-autobuild = "^2020.9.1"
 darglint = "^1.7.0"
 flake8-docstrings = "^1.5.0"