diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8647d9d..3728aee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,14 +2,15 @@ name: CI
 
 on:
   push:
-    branches: [ main, develop ]
+    branches: [ main ]
   pull_request:
-    branches: [ main, develop ]
+    branches: [ main ]
   # Push and pull_request both arrive by webhook, so a dropped delivery leaves a
   # commit with no run at all -- which reads the same as a commit that passed.
-  # Dispatch re-runs this against any ref on demand.
+  # Dispatch re-runs this against any ref on demand -- a branch, or a tag when
+  # checking what a release actually built.
   #
-  #   gh workflow run ci.yml --ref develop
+  #   gh workflow run ci.yml --ref main
   workflow_dispatch:
 
 jobs: