diff --git a/.github/workflows/copyright.yml b/.github/workflows/copyright.yml
index 589639fef..27e0bb457 100644
--- a/.github/workflows/copyright.yml
+++ b/.github/workflows/copyright.yml
@@ -1,5 +1,6 @@
 name: ci/gh-actions/copyright
 on:
+  workflow_dispatch:
   schedule:
     - cron: '0 0 1 1 *'
 jobs: