diff --git a/.github/workflows/create-conda-envs.yml b/.github/workflows/create-conda-envs.yml
index 95b3f080ff9..63e7f5af531 100644
--- a/.github/workflows/create-conda-envs.yml
+++ b/.github/workflows/create-conda-envs.yml
@@ -10,6 +10,8 @@ on:
       cylc_flow_version:
         description: 'Version to install.'
         required: true
+  schedule:
+    - cron: '45 0 * * *'
 
 jobs:
   test_conda_install: