diff --git a/Dockerfile b/Dockerfile
index c2860c6..59e48db 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,13 +7,16 @@
 ################################################################################
 # Create a stage for building the application.
 
-ARG RUST_VERSION=1.89.0
-FROM rust:${RUST_VERSION}-slim-bullseye AS build
+ARG RUST_VERSION=1
+FROM rust:${RUST_VERSION}-slim AS build
 ARG TARGET=release
 ARG APP_NAME=urls-txt
 WORKDIR /app
 
-RUN rm /var/lib/dpkg/info/libc-bin.* && apt-get clean && apt-get update && apt install libc-bin
+RUN rm /var/lib/dpkg/info/libc-bin.* \
+    && apt-get clean \
+    && apt-get update \
+    && apt-get install -y libc-bin
 
 # Build the application.
 # Leverage a cache mount to /usr/local/cargo/registry/
@@ -46,9 +49,13 @@ EOF
 # most recent version of that tag when you build your Dockerfile. If
 # reproducability is important, consider using a digest
 # (e.g.,    debian@sha256:ac707220fbd7b67fc19b112cee8170b41a9e97f703f588b2cdbbcdcecdd8af57).
-FROM debian:bullseye-slim AS final
-RUN rm /var/lib/dpkg/info/libc-bin.* && apt-get clean && apt-get update && apt install libc-bin
-ENV URLS_TXT_BIND_ADDRESS=0.0.0.0:3000
+FROM debian:trixie-slim AS final
+
+RUN rm /var/lib/dpkg/info/libc-bin.* \
+    && apt-get clean \
+    && apt-get update \
+    && apt-get upgrade -y \
+    && apt-get install -y libc-bin adduser
 
 # Create a non-privileged user that the app will run under.
 # See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/   #user
@@ -63,11 +70,9 @@ RUN adduser \
     appuser
 USER appuser
 
-# Copy the executable from the "build" stage.
 COPY --from=build /bin/server /bin/
 
-# Expose the port that the application listens on.
-EXPOSE 8000
+EXPOSE 3000
 
-# What the container should run when it is started.
+ENV URLS_TXT_BIND_ADDRESS=0.0.0.0:3000
 CMD ["/bin/server", "/urls.txt"]