diff --git a/setup.py b/setup.py
index c6cce1f..4430ee9 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@
       keywords='observer observable asyncio',
           python_requires='>=3.11',
           packages=find_packages(include=["nucosObs", "nucosObs.*"]),
-          install_requires=['websockets>=15,<17', 'aiohttp>=3.12,<4'],
+          install_requires=['websockets>=15,<18', 'aiohttp>=3.12,<4'],
           extras_require={
                   "test": [
                       "pytest>=9,<10",