diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 53d12c5c..d912af53 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -164,7 +164,9 @@ jobs:
           fi
 
           if [ "${{ matrix.main_dependencies }}" != "" ]; then
-              pip install git+https://github.com/ipython/traitlets#egg=traitlets --force
+              # Tests are broken:
+              # https://github.com/jupyterhub/jupyterhub/issues/4418
+              # pip install git+https://github.com/ipython/traitlets#egg=traitlets --force
               pip install --upgrade --pre sqlalchemy
           fi
           if [ "${{ matrix.legacy_notebook }}" != "" ]; then