diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 5d787d9..ceb516d 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -21,15 +21,21 @@ jobs:
       - name: Install the dependencies
         run: |
           python -m pip install -r requirements.txt
+      - name: Install micromamba
+        run: |
+          curl -Ls https://micro.mamba.pm/api/micromamba/linux-64/latest | tar -xvj bin/micromamba
+          sudo mv bin/micromamba /usr/local/bin/micromamba
+          micromamba --version
+          
       - name: Build the JupyterLite site
         run: |
           # jupyter lite build --files content
           jupyter lite build --contents content --output-dir dist
 
       - name: Upload (dist)
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: jupyterlite-demo dist ${{ github.run_number }}
+          name: jupyterlite-demo-dist-${{ github.run_number }}
           # path: ./_output
           path: ./dist
 
@@ -39,10 +45,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.1
-      - uses: actions/download-artifact@v3
+        uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
         with:
-          name: jupyterlite-demo dist ${{ github.run_number }}
+          name: jupyterlite-demo-dist-${{ github.run_number }}
           path: ./dist
 
       - name: Deploy