diff --git a/requirements.txt b/requirements.txt
index 5499ebdc..2b89047d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ anyio==3.7.1
 black==23.7.0
 coverage[toml]==7.3.0
 ruff==0.0.277
-mypy==1.4.1
+mypy==1.5.1
 trio-typing==0.8.0
 types-certifi==2021.10.8.3
 pytest==7.4.0