diff --git a/priv/templates/phx.gen.release/Dockerfile.eex b/priv/templates/phx.gen.release/Dockerfile.eex
index 40a88eedbc..49e8d82b5b 100644
--- a/priv/templates/phx.gen.release/Dockerfile.eex
+++ b/priv/templates/phx.gen.release/Dockerfile.eex
@@ -1,16 +1,22 @@
-# Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian
-# instead of Alpine to avoid DNS resolution issues in production.
+# This file is based on these images:
 #
-# https://hub.docker.com/r/hexpm/elixir/tags?name=ubuntu
-# https://hub.docker.com/_/ubuntu/tags
+#   - https://hub.docker.com/r/hexpm/elixir/tags - for the builder image
+#     E.g.: docker.io/hexpm/elixir:<%= elixir_vsn %>-erlang-<%= otp_vsn %>-debian-<%= debian %>-<%= debian_vsn %>-slim
+#   - https://hub.docker.com/_/debian/tags?name=<%= debian %>-<%= debian_vsn %>-slim - for the runner image
+#     E.g.: docker.io/debian:<%= debian %>-<%= debian_vsn %>-slim
 #
-# This file is based on these images:
+# Find builder and runner images on Docker Hub or on Hex's Build Server (Bob).
+# We recommend using Bob's Web UI to find recent tags:
+#
+#   - https://bob.hex.pm/docker
 #
-#   - https://hub.docker.com/r/hexpm/elixir/tags - for the build image
-#   - https://hub.docker.com/_/debian/tags?name=<%= debian %>-<%= debian_vsn %>-slim - for the release image
-#   - https://pkgs.org/ - resource for finding needed packages
-#   - Ex: docker.io/hexpm/elixir:<%= elixir_vsn %>-erlang-<%= otp_vsn %>-debian-<%= debian %>-<%= debian_vsn %>-slim
+# We suggest using the same Debian version for both the builder and runner images.
 #
+# We suggest Debian/Ubuntu instead of Alpine to avoid production compatibility issues
+# (such as DNS resolution failures, and dynamically linked NIFs/precompiled binaries).
+#
+# For finding packages in Debian, search on https://packages.debian.org/.
+
 ARG ELIXIR_VERSION=<%= elixir_vsn %>
 ARG OTP_VERSION=<%= otp_vsn %>
 ARG DEBIAN_VERSION=<%= debian %>-<%= debian_vsn %>-slim