diff --git a/.github/workflows/build-epub-release.yml b/.github/workflows/build-epub-release.yml
index 1486c47..707b092 100644
--- a/.github/workflows/build-epub-release.yml
+++ b/.github/workflows/build-epub-release.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+  workflow_dispatch:
 
 jobs:
   release-epubs: