diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b298992f..3b0ef91a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,6 +23,9 @@ jobs:
             python=3.9
             jupyterlab=4
             yarn=3
+            pillow
+            mercantile
+            xyzservices
 
       - name: Setup pip cache
         uses: actions/cache@v2
diff --git a/.github/workflows/check-release.yml b/.github/workflows/check-release.yml
index a91c2891..a8300d30 100644
--- a/.github/workflows/check-release.yml
+++ b/.github/workflows/check-release.yml
@@ -22,6 +22,9 @@ jobs:
             yarn=3
             pip
             jupyter-releaser
+            pillow
+            mercantile
+            xyzservices
 
       - name: Check Release
         uses: jupyter-server/jupyter_releaser/.github/actions/check-release@v2