diff --git a/.github/workflows/convert.yaml b/.github/workflows/convert.yaml
index 6d1a49ec..67e62a10 100644
--- a/.github/workflows/convert.yaml
+++ b/.github/workflows/convert.yaml
@@ -1,6 +1,7 @@
 name: "convert dockerfiles"
 
 on:
+  workflow_dispatch:
   schedule:
     - cron: '0 0 * * *'
 
@@ -36,7 +37,7 @@ jobs:
           ZOT_PORT: 5000
         run: |
           # start a zot instance (minimal)
-          podman run -p ${ZOT_PORT}:${ZOT_PORT} ghcr.io/project-zot/zot-minimal-linux-amd64:latest
+          podman run -d -p ${ZOT_PORT}:${ZOT_PORT} ghcr.io/project-zot/zot-minimal-linux-amd64:latest
           # check if reachable
           while true; do x=0; curl -f http://${REGISTRY_URL}/v2/ || x=1; if [ $x -eq 0 ]; then break; fi; sleep 1; done
       - name: alpine