diff --git a/tox.ini b/tox.ini
index ad9fccd4e..0dabfd3a2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -28,7 +28,7 @@ commands =
   python ./test/filename_matching.py
 
 [testenv:mypy]
-deps = mypy==0.782
+deps = mypy==0.790
 commands =
   mypy . {posargs}
 
@@ -48,7 +48,7 @@ passenv = CI_* GITHUB_* AWS_* TWINE_* DOCKER_*
 deps =
   -rrequirements.txt
   pyinstaller==4.1
-  twine==3.2.0
+  twine==3.3.0
   awscli
 commands =
   mitmdump --version