diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 589f2c1..ece8039 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -1,6 +1,7 @@
 name: Build container images
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - "master"