diff --git a/requirements-dev.txt b/requirements-dev.txt
index 077daf8..771b4f8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 # Development dependencies for python_maithili.
 # Runtime has zero dependencies — everything here is for tests and tooling.
-pytest>=7.4,<9
+pytest>=9.1.1,<10
 pytest-cov>=7.1.0,<8
 pytest-timeout>=2.4.0,<3