diff --git a/dev-requirements.txt b/dev-requirements.txt
index a43be60..3cc6093 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -5,6 +5,6 @@ flaky
 freezegun==1.5.5
 hypothesis
 ipdb
-mypy==1.19.1
+mypy==1.20.0
 pip-tools
 pre-commit