diff --git a/setup.cfg b/setup.cfg
index fca0d66d..2e0e203a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -73,7 +73,6 @@ jupyter =
     jupyterlab >=3.0
     jupyterlab-code-formatter
     jupyterlab-myst
-    ypy-websocket <0.8.3  # https://github.com/ComPWA/ampform-dpd/actions/runs/4350341987/jobs/7600958934#step:3:78
 test =
     nbmake <=1.3.0  # https://github.com/ComPWA/ampform-dpd/actions/runs/3190469093/jobs/5205620578#step:3:69
     numpy