diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 6188c7c..e155e0f 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -11,8 +11,8 @@ on:
   workflow_dispatch:
 
   schedule:
-    # Every day at 4am UTC (10pm Chicago, 5am Geneva)
-    - cron: "00 4 * * *"
+    # First day of every month at 4am UTC (10pm Chicago, 5am Geneva)
+    - cron: "00 4 1 * *"
 
 env:
   BASE_URL: /${{ github.event.repository.name }}
diff --git a/environment.yml b/environment.yml
index a74329e..61b50d6 100644
--- a/environment.yml
+++ b/environment.yml
@@ -5,10 +5,10 @@ channels:
 
 dependencies:
   # Python itself
-  - python=3.11
+  - python=3.14
 
   # for building and testing the JupyterBook
-  - jupyter-book
+  - jupyter-book<2
   - ghp-import
   - nbconvert
 
@@ -42,6 +42,6 @@ dependencies:
   # distributed computing
   - dask
   - distributed
-  - dask-awkward
+  - dask-awkward>=2026
   - graphviz
   - python-graphviz