diff --git a/requirements-tests-py3.txt b/requirements-tests-py3.txt
index 7349108e8..866f44a50 100644
--- a/requirements-tests-py3.txt
+++ b/requirements-tests-py3.txt
@@ -2,9 +2,9 @@
 # typeshed is released on PyPI.
 git+https://github.com/python/mypy.git@master
 typed-ast>=1.0.4
-black==21.5b1
-flake8==3.8.4
-flake8-bugbear==20.1.4
+black==21.5b2
+flake8==3.9.2
+flake8-bugbear==21.4.3
 flake8-pyi==20.10.0
-isort==5.5.3
+isort==5.8.0
 pytype>=2021.5.25