diff --git a/pyproject.toml b/pyproject.toml
index 1e0d6e4..5ab1fb0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ flask = [
 ]
 dev = [
   "build>=1.2.2",
-  "pytest>=8.3,<9"
+  "pytest>=8.3,<10"
 ]
 
 [tool.hatch.build.targets.wheel]