diff --git a/requirements-dev.txt b/requirements-dev.txt
index 29e609b0..6847acbd 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ flake8-bandit==4.1.1
 flake8-bugbear==25.11.29
 flake8-import-order==0.19.2
 flake8-requirements==2.3.0
-mypy==1.19.1
+mypy==1.20.0
 pep257==0.7.0
 pre-commit==4.5.1
 sphinx==9.1.0