diff --git a/poetry.lock b/poetry.lock
index 66fc8f7..98872d5 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -318,7 +318,7 @@ tzlocal = ">=2.1"
 
 [[package]]
 name = "flake8"
-version = "3.9.0"
+version = "3.9.1"
 description = "the modular source code checker: pep8 pyflakes and co"
 category = "dev"
 optional = false
@@ -363,7 +363,7 @@ test = ["mock (>=1.3.0)"]
 
 [[package]]
 name = "importlib-metadata"
-version = "3.10.1"
+version = "4.0.0"
 description = "Read metadata from Python packages"
 category = "main"
 optional = false
@@ -1672,8 +1672,8 @@ extract-msg = [
     {file = "extract_msg-0.28.7.tar.gz", hash = "sha256:7ebdbd7863a3699080a69f71ec0cd30ed9bfee70bad9acc6a8e6abe9523c78c0"},
 ]
 flake8 = [
-    {file = "flake8-3.9.0-py2.py3-none-any.whl", hash = "sha256:12d05ab02614b6aee8df7c36b97d1a3b2372761222b19b58621355e82acddcff"},
-    {file = "flake8-3.9.0.tar.gz", hash = "sha256:78873e372b12b093da7b5e5ed302e8ad9e988b38b063b61ad937f26ca58fc5f0"},
+    {file = "flake8-3.9.1-py2.py3-none-any.whl", hash = "sha256:3b9f848952dddccf635be78098ca75010f073bfe14d2c6bda867154bea728d2a"},
+    {file = "flake8-3.9.1.tar.gz", hash = "sha256:1aa8990be1e689d96c745c5682b687ea49f2e05a443aff1f8251092b0014e378"},
 ]
 idna = [
     {file = "idna-2.10-py2.py3-none-any.whl", hash = "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"},
@@ -1688,8 +1688,8 @@ imapclient = [
     {file = "IMAPClient-2.1.0.zip", hash = "sha256:60ba79758cc9f13ec910d7a3df9acaaf2bb6c458720d9a02ec33a41352fd1b99"},
 ]
 importlib-metadata = [
-    {file = "importlib_metadata-3.10.1-py3-none-any.whl", hash = "sha256:2ec0faae539743ae6aaa84b49a169670a465f7f5d64e6add98388cc29fd1f2f6"},
-    {file = "importlib_metadata-3.10.1.tar.gz", hash = "sha256:c9356b657de65c53744046fa8f7358afe0714a1af7d570c00c3835c2d724a7c1"},
+    {file = "importlib_metadata-4.0.0-py3-none-any.whl", hash = "sha256:19192b88d959336bfa6bdaaaef99aeafec179eca19c47c804e555703ee5f07ef"},
+    {file = "importlib_metadata-4.0.0.tar.gz", hash = "sha256:2e881981c9748d7282b374b68e759c87745c25427b67ecf0cc67fb6637a1bff9"},
 ]
 ipykernel = [
     {file = "ipykernel-5.5.3-py3-none-any.whl", hash = "sha256:21abd584543759e49010975a4621603b3cf871b1039cb3879a14094717692614"},