diff --git a/.github/workflows/rebase_checker.yaml b/.github/workflows/rebase_checker.yaml
new file mode 100644
index 0000000..62aeca7
--- /dev/null
+++ b/.github/workflows/rebase_checker.yaml
@@ -0,0 +1,8 @@
+---
+name: Check that 'main' is not merged into the development branch
+
+on: pull_request
+
+jobs:
+  call-workflow:
+    uses: lsst/rubin_workflows/.github/workflows/rebase_checker.yaml@main