diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ff7d43..7401f9e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,8 @@ on:
   pull_request:
   push:
     branches: [master]
+  # Allow maintainers to manually kick CI when GitHub doesn't create a run for a new head SHA.
+  workflow_dispatch:
 
 concurrency:
   group: ci-${{ github.workflow }}-${{ github.ref }}