diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 86b4af3..96e3b0b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -174,7 +174,7 @@ jobs:
       - name: docker compose up
         run: docker compose up --wait
       - name: ensure running properly
-        run: docker compose exec --no-TTY orbit wget --spider -S http://localhost:4000/
+        run: docker compose exec --no-TTY orbit wget --spider -S http://localhost:4001/
       - name: show docker container logs
         run: docker compose logs orbit
         if: ${{ !cancelled() }}
diff --git a/Dockerfile b/Dockerfile
index aefded5..3e16c13 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -56,7 +56,7 @@ RUN mix release --path /app-release
 FROM alpine:3.19.1 AS runtime
 
 # HTTP port
-EXPOSE 4000
+EXPOSE 4001
 
 # Erlang depends on these
 RUN apk add --no-cache ncurses-libs libstdc++ libgcc
@@ -71,6 +71,6 @@ USER orbit
 WORKDIR /home/orbit
 
 # Run properly in production
-ENV PORT=4000 MIX_ENV=prod TERM=xterm LANG="C.UTF-8"
+ENV PORT=4001 MIX_ENV=prod TERM=xterm LANG="C.UTF-8"
 COPY --from=elixir --chown=orbit:orbit /app-release .
 CMD ["bin/orbit", "start"]
diff --git a/README.md b/README.md
index f490087..9bfd5d7 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
 
 Run the server with `mix phx.server`.
 
-Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
+Now you can visit [`localhost:4001`](http://localhost:4001) from your browser.
 
 ## Docker
 
diff --git a/config/dev.exs b/config/dev.exs
index dd7f2df..5d950e5 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -25,7 +25,7 @@ config :orbit, Orbit.Repo,
 config :orbit, OrbitWeb.Endpoint,
   # Binding to loopback ipv4 address prevents access from other machines.
   # Change to `ip: {0, 0, 0, 0}` to allow access from other machines.
-  http: [ip: {127, 0, 0, 1}, port: 4000],
+  http: [ip: {127, 0, 0, 1}, port: 4001],
   check_origin: false,
   code_reloader: true,
   debug_errors: true,
diff --git a/config/runtime.exs b/config/runtime.exs
index 77673f0..5c88626 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -44,7 +44,7 @@ if config_env() == :prod do
       """
 
   host = System.get_env("PHX_HOST") || "example.com"
-  port = String.to_integer(System.get_env("PORT") || "4000")
+  port = String.to_integer(System.get_env("PORT") || "4001")
 
   config :orbit, OrbitWeb.Endpoint,
     url: [host: host, port: 443, scheme: "https"],
diff --git a/docker-compose.yml b/docker-compose.yml
index ea6cd06..230f52d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,4 +18,4 @@ services:
       - DATABASE_DISABLE_SSL=insecure-yes
       - SECRET_KEY_BASE=/insecure/insecure/insecure/insecure/insecure/insecure/insecure/
     ports:
-      - 4000
+      - 4001