diff --git a/poetry.lock b/poetry.lock
index 0b85dd01..887e5631 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -756,7 +756,7 @@ test = ["pytest", "pytest-cov"]
 
 [[package]]
 name = "sphinx-rtd-theme"
-version = "0.5.0"
+version = "0.5.1"
 description = "Read the Docs theme for Sphinx"
 category = "dev"
 optional = false
@@ -962,7 +962,7 @@ 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 = "0f8103f142ac3744920e8c1471c9ef8ffcdf6dd7f41fe9eb7675f1486885b624"
+content-hash = "fe9eda28c3d2b0f95a2a36e3120fa591351451218a6179b27fda8cf663078a3e"
 
 [metadata.files]
 alabaster = [
@@ -1434,8 +1434,8 @@ sphinx-autobuild = [
     {file = "sphinx_autobuild-2021.3.14-py3-none-any.whl", hash = "sha256:8fe8cbfdb75db04475232f05187c776f46f6e9e04cacf1e49ce81bdac649ccac"},
 ]
 sphinx-rtd-theme = [
-    {file = "sphinx_rtd_theme-0.5.0-py2.py3-none-any.whl", hash = "sha256:373413d0f82425aaa28fb288009bf0d0964711d347763af2f1b65cafcb028c82"},
-    {file = "sphinx_rtd_theme-0.5.0.tar.gz", hash = "sha256:22c795ba2832a169ca301cd0a083f7a434e09c538c70beb42782c073651b707d"},
+    {file = "sphinx_rtd_theme-0.5.1-py2.py3-none-any.whl", hash = "sha256:fa6bebd5ab9a73da8e102509a86f3fcc36dec04a0b52ea80e5a033b2aba00113"},
+    {file = "sphinx_rtd_theme-0.5.1.tar.gz", hash = "sha256:eda689eda0c7301a80cf122dad28b1861e5605cbf455558f3775e1e8200e83a5"},
 ]
 sphinxcontrib-applehelp = [
     {file = "sphinxcontrib-applehelp-1.0.2.tar.gz", hash = "sha256:a072735ec80e7675e3f432fcae8610ecf509c5f1869d17e2eecff44389cdbc58"},
diff --git a/pyproject.toml b/pyproject.toml
index 04184a83..0712f239 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ pep8-naming = "^0.11.1"
 darglint = "^1.7.0"
 reorder-python-imports = "^2.4.0"
 pre-commit-hooks = "^3.3.0"
-sphinx-rtd-theme = "^0.5.0"
+sphinx-rtd-theme = "^0.5.1"
 Pygments = "^2.7.2"
 
 [tool.poetry.scripts]