diff --git a/setup.py b/setup.py
index 3d84416..8e39777 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@
     packages=find_packages(exclude=["tests"]),
     install_requires=[
         "httpx>=0.25.2",
-        "websockets>=12.0",
+        "websockets>=12.0,<14.0",
         "dataclasses-json>=0.6.3",
         "typing_extensions>=4.9.0",
         "aiohttp>=3.9.1",