diff --git a/book/src/requirements.txt b/book/src/requirements.txt
index 33cfe641..3a9498d0 100644
--- a/book/src/requirements.txt
+++ b/book/src/requirements.txt
@@ -4,7 +4,7 @@ flake8==7.1.1
 hypothesis==6.115.3
 isort==5.13.2
 MutPy==0.6.1
-mypy==1.12.1
+mypy==1.13.0
 mypy-extensions==1.0.0
 pinject==0.14.1
 pip-tools==7.4.1