diff --git a/requirements/requirements-dev.txt b/requirements/requirements-dev.txt
index d1a09e2..9cced20 100644
--- a/requirements/requirements-dev.txt
+++ b/requirements/requirements-dev.txt
@@ -16,7 +16,7 @@ click==7.1.2
     # via
     #   flask
     #   pip-tools
-coverage==5.4
+coverage==5.5
     # via pytest-cov
 distlib==0.3.1
     # via virtualenv
@@ -30,7 +30,7 @@ flake8-blind-except==0.2.0
     # via -r requirements/requirements-dev.in
 flake8-builtins==1.5.3
     # via -r requirements/requirements-dev.in
-flake8-docstrings==1.5.0
+flake8-docstrings==1.6.0
     # via -r requirements/requirements-dev.in
 flake8-executable==2.1.1
     # via -r requirements/requirements-dev.in
@@ -42,7 +42,7 @@ flake8-logging-format==0.6.0
     # via -r requirements/requirements-dev.in
 flake8-mutable==1.2.0
     # via -r requirements/requirements-dev.in
-flake8==3.8.4
+flake8==3.9.1
     # via
     #   -r requirements/requirements-dev.in
     #   dlint
@@ -53,19 +53,19 @@ flake8==3.8.4
     #   flake8-mutable
 flask==1.1.2
     # via -r requirements/requirements.in
-gitdb==4.0.5
+gitdb==4.0.7
     # via gitpython
-gitpython==3.1.13
+gitpython==3.1.14
     # via bandit
 iniconfig==1.1.1
     # via pytest
-isort==5.7.0
+isort==5.8.0
     # via flake8-isort
 itsdangerous==1.1.0
     # via flask
 jinja2==2.11.3
     # via flask
-markdown==3.3.3
+markdown==3.3.4
     # via
     #   -r requirements/requirements.in
     #   mdx-linkify
@@ -82,7 +82,9 @@ packaging==20.9
     #   tox
 pbr==5.5.1
     # via stevedore
-pip-tools==5.5.0
+pep517==0.10.0
+    # via pip-tools
+pip-tools==6.1.0
     # via -r requirements/requirements-dev.in
 pluggy==0.13.1
     # via
@@ -92,17 +94,17 @@ py==1.10.0
     # via
     #   pytest
     #   tox
-pycodestyle==2.6.0
+pycodestyle==2.7.0
     # via flake8
-pydocstyle==5.1.1
+pydocstyle==6.0.0
     # via flake8-docstrings
-pyflakes==2.2.0
+pyflakes==2.3.1
     # via flake8
 pyparsing==2.4.7
     # via packaging
 pytest-cov==2.11.1
     # via -r requirements/requirements-dev.in
-pytest==6.2.2
+pytest==6.2.3
     # via
     #   -r requirements/requirements-dev.in
     #   pytest-cov
@@ -116,7 +118,7 @@ six==1.15.0
     #   bleach
     #   tox
     #   virtualenv
-smmap==3.0.5
+smmap==4.0.0
     # via gitdb
 snowballstemmer==2.1.0
     # via pydocstyle
@@ -126,11 +128,12 @@ testfixtures==6.17.1
     # via flake8-isort
 toml==0.10.2
     # via
+    #   pep517
     #   pytest
     #   tox
 tox-wheel==0.6.0
     # via -r requirements/requirements-dev.in
-tox==3.22.0
+tox==3.23.0
     # via
     #   -r requirements/requirements-dev.in
     #   tox-wheel
@@ -138,7 +141,7 @@ tzlocal==2.1
     # via -r requirements/requirements.in
 versioneer==0.19
     # via -r requirements/requirements-dev.in
-virtualenv==20.4.2
+virtualenv==20.4.3
     # via tox
 webencodings==0.5.1
     # via bleach
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 94afa16..55d31f8 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -14,7 +14,7 @@ itsdangerous==1.1.0
     # via flask
 jinja2==2.11.3
     # via flask
-markdown==3.3.3
+markdown==3.3.4
     # via
     #   -r requirements/requirements.in
     #   mdx-linkify