diff --git a/pyproject.toml b/pyproject.toml
index 00429a6..e0962c1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,8 +47,8 @@ types-freezegun = "^1.1.6"
 urllib3 = "< 1.27"
 furo = "^2023.9.10"
 ruff = "^0.0.292"
-httpx = "^0.27.0"
-aiohttp = "^3.9.5"
+httpx = ">=0.15.0 <1.0.0"
+aiohttp = "^3.6.2"
 
 [tool.pytest.ini_options]
 asyncio_mode = "auto"