diff --git a/backend/requirements-dev.txt b/backend/requirements-dev.txt
index 4ab3464..d000ca2 100644
--- a/backend/requirements-dev.txt
+++ b/backend/requirements-dev.txt
@@ -7,4 +7,4 @@ pytest==9.0.3
 pytest-asyncio==1.4.0
 
 # Static type checking (baseline; wired into CI as a non-blocking check first)
-mypy==1.13.0
+mypy==2.1.0