diff --git a/pyproject.toml b/pyproject.toml
index 9700c242..b74092fc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ web = [
     "uvicorn>=0.30,<1",
     # uvicorn needs a websockets implementation to serve the /ws realtime
     # channel; without it the WebSocket handshake 500s at runtime.
-    "websockets>=12,<17",
+    "websockets>=12,<18",
 ]
 dev = [
     "pytest>=9.0.3,<10",