diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index ae8749b..171951c 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -1,6 +1,9 @@
 name: Build docker image and push to registry.bitdeals.org
 run-name: docker build and docker push
 on:
+  # Manual trigger as well: the image also changes when upstream releases a new
+  # ElectrumX, which is a build argument here and not a commit.
+  workflow_dispatch:
   push:
     branches:
       - main