diff --git a/poetry.lock b/poetry.lock
index 34f4ccc..0d1ce11 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -159,7 +159,7 @@ six = ">=1.4.0"
 
 [[package]]
 name = "environs"
-version = "9.3.4"
+version = "9.3.5"
 description = "simplified environment variable parsing"
 category = "main"
 optional = false
@@ -170,9 +170,9 @@ 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]]
@@ -867,7 +867,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "7147167ee5afc96780e6ae6ce7dabaa2282a0e76e7a75d53b32903280d10b63a"
+content-hash = "86d959f2e4577ad1a1dffc0e45f77076fec434a4bdfdb419007f7bb466581335"
 
 [metadata.files]
 anyconfig = [
@@ -982,8 +982,8 @@ docker-pycreds = [
     {file = "docker_pycreds-0.4.0-py2.py3-none-any.whl", hash = "sha256:7266112468627868005106ec19cd0d722702d2b7d5912a28e19b826c3d37af49"},
 ]
 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 4582e72..c159c41 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ colorama = "0.4.4"
 dateparser = "1.1.0"
 docker = "5.0.3"
 docker-pycreds = "0.4.0"
-environs = "9.3.4"
+environs = "9.3.5"
 idna = "3.3"
 ipaddress = "1.0.23"
 jsonschema = "4.2.1"