diff --git a/pyproject.toml b/pyproject.toml
index 7e0fcba83..600459f6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ typing-extensions = "^4.10.0"
 
 [tool.poetry.group.dev.dependencies]
 black = "24.4.0"
-pytest = "^8.0.2"
+pytest = ">=8.0.2,<10.0.0"
 pytest-cov = "^4.1.0"
 pre-commit = "^3.6.2"
 flake8 = "7.0.0"