diff --git a/.github/workflows/refresh-lockfiles.yml b/.github/workflows/refresh-lockfiles.yml
new file mode 100644
index 00000000..3ee6b18f
--- /dev/null
+++ b/.github/workflows/refresh-lockfiles.yml
@@ -0,0 +1,14 @@
+# Updates the environment lock files. See the called workflow in the
+# scitools/reusable_workflows repo for more details.
+name: Refresh Lockfiles
+
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "2 0 * * 6"
+
+jobs:
+  refresh_lockfiles:
+    uses: scitools/reusable_workflows/.github/workflows/refresh-lockfiles.yml@main
+    secrets: inherit