diff --git a/pyproject.toml b/pyproject.toml
index 305a077..c81b790 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dev = [
   "build>=1.2,<2",
   "httpx>=0.27,<1",
   "mypy>=1.14,<3",
-  "pytest>=8,<9",
+  "pytest>=8,<10",
   "pytest-cov>=6,<8",
   "ruff>=0.9,<1",
 ]