diff --git a/requirements.dev.txt b/requirements.dev.txt
index 6755f1b..713e10c 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -2,7 +2,7 @@
 -r requirements.txt
 
 coverage==7.13.1
-mypy==1.19.1
+mypy==1.20.2
 pytest==9.0.2
 pytest-cov==7.0.0
 ruff==0.14.10