diff --git a/setup.cfg b/setup.cfg
index b708ea475..aa33f612c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -34,7 +34,7 @@ setup_requires =
 install_requires =
     typing-extensions>=4.0.1
     uvicorn>=0.16.0
-    starlette>=0.17.1
+    starlette>=0.17.1,<0.35.0
     websockets>=10.0
     python-multipart
     htmltools>=0.5.1