diff --git a/tox.ini b/tox.ini
index cbd69e163..d76276263 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,7 +17,7 @@ commands =
 
 [testenv:flake8]
 deps =
-  flake8>=3.8.4,<4
+  flake8>=4.0,<4.1
   flake8-tidy-imports>=4.2.0,<5
 commands =
   flake8 --jobs 8 mitmproxy examples test release {posargs}
@@ -30,11 +30,11 @@ commands =
 [testenv:mypy]
 deps =
   mypy==0.910
-  types-certifi==2020.4.0
-  types-Flask==1.1.3
-  types-Werkzeug==1.0.5
-  types-requests==2.25.9
-  types-cryptography==3.3.5
+  types-certifi==2021.10.8.0
+  types-Flask==1.1.5
+  types-Werkzeug==1.0.7
+  types-requests==2.26.0
+  types-cryptography==3.3.8
   types-pyOpenSSL==21.0.0
 
 commands =