diff --git a/requirements-dev.txt b/requirements-dev.txt
index e897cac..a5eb4cd 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,7 +4,7 @@ unasync
 black
 tokenize-rt
 coverage
-mypy
+mypy==1.13.0
 typing_extensions
 jinja2
 pytest-rerunfailures