diff --git a/Dockerfile b/Dockerfile
index 222024633..7ab09e230 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
-FROM photoprism/develop:20220215
+FROM photoprism/develop:20220216-bullseye
 
-## experimental base images
-# FROM photoprism/develop:buster
-# FROM photoprism/develop:bullseye
+## other base images to choose from...
+# FROM photoprism/develop:buster   # Debian 10 (Buster)
+# FROM photoprism/develop:impish   # Ubuntu 21.10 (Impish Indri)
 
 # update NPM JS package manager
 RUN npm install -g npm
diff --git a/docker/develop/armv7/Dockerfile b/docker/develop/armv7/Dockerfile
index 87cbcbf09..ac8efdc79 100644
--- a/docker/develop/armv7/Dockerfile
+++ b/docker/develop/armv7/Dockerfile
@@ -1,7 +1,7 @@
 #### Debian 11 (Bullseye)
 FROM golang:bullseye
 
-LABEL maintainer="Michael Mayer <hello@photoprism.org>"
+LABEL maintainer="Michael Mayer <hello@photoprism.app>"
 
 ARG TARGETARCH
 ARG TARGETPLATFORM
diff --git a/docker/photoprism/armv7/Dockerfile b/docker/photoprism/armv7/Dockerfile
index 3304b10be..97d9b53d1 100644
--- a/docker/photoprism/armv7/Dockerfile
+++ b/docker/photoprism/armv7/Dockerfile
@@ -18,7 +18,7 @@ RUN make npm dep build-js install
 #### Debian 11 (Bullseye)
 FROM debian:bullseye-slim
 
-LABEL maintainer="Michael Mayer <hello@photoprism.org>"
+LABEL maintainer="Michael Mayer <hello@photoprism.app>"
 
 ARG TARGETARCH
 ARG TARGETPLATFORM