diff --git a/requirements-dev.txt b/requirements-dev.txt
index bad835d..0b3f2a8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,15 +1,15 @@
 black==19.10b0
-coverage==5.3.1
-isort==5.6.4
+coverage==5.4
+isort==5.7.0
 m2r2==0.2.7
-mypy==0.790
+mypy==0.800
 pydocstyle==5.1.1
 pylint==2.6.0
-pytest==6.2.1
+pytest==6.2.2
 pytest-asyncio==0.14.0
-pytest-cov==2.10.1
-python-semantic-release==7.9.0
-setuptools==51.1.0
-sphinx==3.4.0
-tox==3.20.1
+pytest-cov==2.11.1
+python-semantic-release==7.13.1
+setuptools==51.3.3
+sphinx==3.4.3
+tox==3.21.2
 wheel==0.36.2