diff --git a/pyproject.toml b/pyproject.toml
index 2219975..852f87f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,7 +62,7 @@ requires-python = ">=3.8"
 
 [project.optional-dependencies]
 dev = [
-  "mypy~=1.14.0",
+  "mypy>=1.14,<1.16",
   "isort==5.13.2",
   "mypy-extensions>=0.4.3",
   "pre-commit>=2.20.0",