diff --git a/pyproject.toml b/pyproject.toml
index a5210fb..44aedc9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ markers = [
 
 [dependency-groups]
 dev = [
-    "pytest>=8,<9",
+    "pytest>=9,<10",
     "pytest-asyncio>=0.24,<2",
     "respx>=0.21,<1",
     "ruff>=0.8,<1",