diff --git a/poetry.lock b/poetry.lock
index 4c48f09..a072129 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -396,11 +396,11 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "pydocstyle"
-version = "5.1.1"
+version = "6.0.0"
 description = "Python docstring style checker"
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
 
 [package.dependencies]
 snowballstemmer = "*"
@@ -631,7 +631,7 @@ testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6.0"
-content-hash = "e2c452c5327719773fed1dd903b13fbb4cc12e08ad0264bec73e4acec16cf8e7"
+content-hash = "743ce2eaea8791330973e0205224e999bb20a28cb179fc26089b8a101173641a"
 
 [metadata.files]
 atomicwrites = [
@@ -871,8 +871,8 @@ pycodestyle = [
     {file = "pycodestyle-2.6.0.tar.gz", hash = "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"},
 ]
 pydocstyle = [
-    {file = "pydocstyle-5.1.1-py3-none-any.whl", hash = "sha256:aca749e190a01726a4fb472dd4ef23b5c9da7b9205c0a7857c06533de13fd678"},
-    {file = "pydocstyle-5.1.1.tar.gz", hash = "sha256:19b86fa8617ed916776a11cd8bc0197e5b9856d5433b777f51a3defe13075325"},
+    {file = "pydocstyle-6.0.0-py3-none-any.whl", hash = "sha256:d4449cf16d7e6709f63192146706933c7a334af7c0f083904799ccb851c50f6d"},
+    {file = "pydocstyle-6.0.0.tar.gz", hash = "sha256:164befb520d851dbcf0e029681b91f4f599c62c5cd8933fd54b1bfbd50e89e1f"},
 ]
 pyflakes = [
     {file = "pyflakes-2.2.0-py2.py3-none-any.whl", hash = "sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92"},
diff --git a/pyproject.toml b/pyproject.toml
index 308c77c..a4d484a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ flake8-polyfill = "^1.0.2"
 flake8-quotes = "^3.2.0"
 pdoc3 = "^0.9.2"
 pep8-naming = "^0.11.1"
-pydocstyle = "^5.1.1"
+pydocstyle = "^6.0.0"
 pytest = "^6.2.1"
 pytest-cov = "^2.10.1"
 pytest-mock = "^3.4.0"