diff --git a/pyproject.toml b/pyproject.toml
index e9b759d..f4f5cbc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ classifiers = [
 ]
 
 [project.optional-dependencies]
-dev = ["pytest>=8,<9", "pytest-cov>=5,<7", "ruff>=0.8,<1", "mypy>=1.13,<2", "build>=1.2,<2"]
+dev = ["pytest>=8,<10", "pytest-cov>=5,<8", "ruff>=0.8,<1", "mypy>=1.13,<3", "build>=1.2,<2"]
 
 [project.scripts]
 semanticdiff = "semanticdiff.cli:main"