diff --git a/poetry.lock b/poetry.lock
index 908c7d0..910ec32 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -101,7 +101,7 @@ toml = ["tomli"]
 
 [[package]]
 name = "environs"
-version = "9.3.4"
+version = "9.3.5"
 description = "simplified environment variable parsing"
 category = "main"
 optional = false
@@ -112,9 +112,9 @@ marshmallow = ">=3.0.0"
 python-dotenv = "*"
 
 [package.extras]
-dev = ["pytest", "dj-database-url", "dj-email-url", "django-cache-url", "flake8 (==3.9.2)", "flake8-bugbear (==21.4.3)", "mypy (==0.910)", "pre-commit (>=2.4,<3.0)", "tox"]
+dev = ["pytest", "dj-database-url", "dj-email-url", "django-cache-url", "flake8 (==4.0.1)", "flake8-bugbear (==21.9.2)", "mypy (==0.910)", "pre-commit (>=2.4,<3.0)", "tox"]
 django = ["dj-database-url", "dj-email-url", "django-cache-url"]
-lint = ["flake8 (==3.9.2)", "flake8-bugbear (==21.4.3)", "mypy (==0.910)", "pre-commit (>=2.4,<3.0)"]
+lint = ["flake8 (==4.0.1)", "flake8-bugbear (==21.9.2)", "mypy (==0.910)", "pre-commit (>=2.4,<3.0)"]
 tests = ["pytest", "dj-database-url", "dj-email-url", "django-cache-url"]
 
 [[package]]
@@ -728,7 +728,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "8845993fa1e8bc31425f401ff3b99aff78eb1dd1b3736b5ede937b2f711deb54"
+content-hash = "1fa333f5c7f94d4d4c7b5f6da2ae2a5f09a221c4301202a5a48607c9aec2def5"
 
 [metadata.files]
 anyconfig = [
@@ -813,8 +813,8 @@ coverage = [
     {file = "coverage-6.1.2.tar.gz", hash = "sha256:d9a635114b88c0ab462e0355472d00a180a5fbfd8511e7f18e4ac32652e7d972"},
 ]
 environs = [
-    {file = "environs-9.3.4-py2.py3-none-any.whl", hash = "sha256:7412eca2996027a0a1eafd89bbfec872568e7b4ca75fc980817bfd7788cb5a1f"},
-    {file = "environs-9.3.4.tar.gz", hash = "sha256:eecf57fb1b91f1166a8a16344a3fd12ea55b7a0f233c906d86506bdb40738a0f"},
+    {file = "environs-9.3.5-py2.py3-none-any.whl", hash = "sha256:f5a3ca00afd32a82e098597c7dc8899bea5ed451d31055e518e8c7681cdf1c2b"},
+    {file = "environs-9.3.5.tar.gz", hash = "sha256:47128992b854cf7e279e62127100767d765a1ead8d22f355e63c00661550131b"},
 ]
 eradicate = [
     {file = "eradicate-2.0.0.tar.gz", hash = "sha256:27434596f2c5314cc9b31410c93d8f7e8885747399773cd088d3adea647a60c8"},
diff --git a/pyproject.toml b/pyproject.toml
index 83dd987..fddf5a3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ version = "0.0.0"
 anyconfig = "0.12.0"
 appdirs = "1.4.4"
 colorama = "0.4.4"
-environs = "9.3.4"
+environs = "9.3.5"
 jsonschema = "4.2.1"
 nested-lookup = "0.2.23"
 prometheus-client = "0.12.0"