diff --git a/packages/http/httpx/pyproject.toml b/packages/http/httpx/pyproject.toml
index 646ae1e..1c5e4c0 100644
--- a/packages/http/httpx/pyproject.toml
+++ b/packages/http/httpx/pyproject.toml
@@ -36,7 +36,7 @@ yapf = ">=0.40.2,<0.44.0"
 isort = ">=5.13.2,<7.0.0"
 pylint = ">=3.2.7,<5.0.0"
 mypy = "^1.11.2"
-pytest = "^8.3.2"
+pytest = ">=8.3.2,<10.0.0"
 pytest-asyncio = ">=0.24,<1.4"
 pytest-mock = "^3.14.0"
 poetry-plugin-mono-repo-deps = ">=0.2.1,<0.4.0"