--- pyproject.toml.orig	2020-02-02 00:00:00 UTC
+++ pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "terminado>=0.8.3",
     "tornado>=6.2.0",
     "traitlets>=5.6.0",
-    "websocket-client>=1.7",
+    "websocket-client>=1.3",
     "jupyter_events>=0.9.0",
     "overrides>=5.0"
 ]