diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index b6a26f21d..b8a5e1c79 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -13,6 +13,7 @@ jobs:
     - name: build docker image
       run: |
         docker build . --tag randombenj/docat:${{ github.sha }}
+        docker tag randombenj/docat:${{ github.sha }} randombenj/docat:unstable
 
     - name: tag latest and version on release
       run: |
diff --git a/README.md b/README.md
index 661474842..205f18354 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ you can optionally use volumes to save state:
 
 ```sh
 # run container in background and persist data (docs, nginx configs)
+# use 'randombenj/docat:unstable' to get the latest changes
 docker run \
   --detach \
   --volume /path/to/doc:/var/docat/doc/ \