diff --git a/poetry.lock b/poetry.lock
index 7728cce7..52b530dd 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -288,7 +288,7 @@ pycodestyle = "*"
 
 [[package]]
 name = "flake8-bugbear"
-version = "20.11.1"
+version = "21.3.1"
 description = "A plugin for flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle."
 category = "dev"
 optional = false
@@ -1065,7 +1065,7 @@ 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 = "ef92fb9e10bc112b6a36a3cdf9e0ba9a28062c9c410203db95e0116b0d810311"
+content-hash = "869715c72f053ea199bd8b437b2477ac276b726fb5af86300cf374df7d726888"
 
 [metadata.files]
 alabaster = [
@@ -1223,11 +1223,16 @@ coverage = [
 ]
 cryptography = [
     {file = "cryptography-3.4.6-cp36-abi3-macosx_10_10_x86_64.whl", hash = "sha256:57ad77d32917bc55299b16d3b996ffa42a1c73c6cfa829b14043c561288d2799"},
+    {file = "cryptography-3.4.6-cp36-abi3-macosx_11_0_arm64.whl", hash = "sha256:4169a27b818de4a1860720108b55a2801f32b6ae79e7f99c00d79f2a2822eeb7"},
     {file = "cryptography-3.4.6-cp36-abi3-manylinux2010_x86_64.whl", hash = "sha256:93cfe5b7ff006de13e1e89830810ecbd014791b042cbe5eec253be11ac2b28f3"},
     {file = "cryptography-3.4.6-cp36-abi3-manylinux2014_aarch64.whl", hash = "sha256:5ecf2bcb34d17415e89b546dbb44e73080f747e504273e4d4987630493cded1b"},
     {file = "cryptography-3.4.6-cp36-abi3-manylinux2014_x86_64.whl", hash = "sha256:fec7fb46b10da10d9e1d078d1ff8ed9e05ae14f431fdbd11145edd0550b9a964"},
     {file = "cryptography-3.4.6-cp36-abi3-win32.whl", hash = "sha256:df186fcbf86dc1ce56305becb8434e4b6b7504bc724b71ad7a3239e0c9d14ef2"},
     {file = "cryptography-3.4.6-cp36-abi3-win_amd64.whl", hash = "sha256:66b57a9ca4b3221d51b237094b0303843b914b7d5afd4349970bb26518e350b0"},
+    {file = "cryptography-3.4.6-pp36-pypy36_pp73-manylinux2010_x86_64.whl", hash = "sha256:066bc53f052dfeda2f2d7c195cf16fb3e5ff13e1b6b7415b468514b40b381a5b"},
+    {file = "cryptography-3.4.6-pp36-pypy36_pp73-manylinux2014_x86_64.whl", hash = "sha256:600cf9bfe75e96d965509a4c0b2b183f74a4fa6f5331dcb40fb7b77b7c2484df"},
+    {file = "cryptography-3.4.6-pp37-pypy37_pp73-manylinux2010_x86_64.whl", hash = "sha256:0923ba600d00718d63a3976f23cab19aef10c1765038945628cd9be047ad0336"},
+    {file = "cryptography-3.4.6-pp37-pypy37_pp73-manylinux2014_x86_64.whl", hash = "sha256:9e98b452132963678e3ac6c73f7010fe53adf72209a32854d55690acac3f6724"},
     {file = "cryptography-3.4.6.tar.gz", hash = "sha256:2d32223e5b0ee02943f32b19245b61a62db83a882f0e76cc564e1cec60d48f87"},
 ]
 darglint = [
@@ -1258,8 +1263,8 @@ flake8-bandit = [
     {file = "flake8_bandit-2.1.2.tar.gz", hash = "sha256:687fc8da2e4a239b206af2e54a90093572a60d0954f3054e23690739b0b0de3b"},
 ]
 flake8-bugbear = [
-    {file = "flake8-bugbear-20.11.1.tar.gz", hash = "sha256:528020129fea2dea33a466b9d64ab650aa3e5f9ffc788b70ea4bc6cf18283538"},
-    {file = "flake8_bugbear-20.11.1-py36.py37.py38-none-any.whl", hash = "sha256:f35b8135ece7a014bc0aee5b5d485334ac30a6da48494998cc1fabf7ec70d703"},
+    {file = "flake8-bugbear-21.3.1.tar.gz", hash = "sha256:ea08deb8922486e856b38c9338936de1e1de4ad9e7c912be142673d5afe5ac89"},
+    {file = "flake8_bugbear-21.3.1-py36.py37.py38-none-any.whl", hash = "sha256:0c5b949dc1f33d2adae284294d39a81dd11534fbf689890fb22ee532cab959d9"},
 ]
 flake8-docstrings = [
     {file = "flake8-docstrings-1.5.0.tar.gz", hash = "sha256:3d5a31c7ec6b7367ea6506a87ec293b94a0a46c0bce2bb4975b7f1d09b6f3717"},
diff --git a/pyproject.toml b/pyproject.toml
index 767a690b..a9640def 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ pre-commit = "^2.10.0"
 flake8 = "^3.8.4"
 black = "^20.8b1"
 flake8-bandit = "^2.1.2"
-flake8-bugbear = "^20.11.1"
+flake8-bugbear = "^21.3.1"
 flake8-docstrings = "^1.5.0"
 flake8-rst-docstrings = "^0.0.14"
 pep8-naming = "^0.11.1"