diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 2feb521..cb81c41 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -20,7 +20,8 @@ jobs:
           python-version: '3.11'
       - name: Install the dependencies
         run: |
-          python -m pip install jupyterlite-core jupyterlite-pyodide-kernel
+          python -m pip install jupyterlite-core --pre
+          python -m pip install jupyterlite-pyodide-kernel
 
           # install a dev version of the extension
           python -m pip install .