diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecc86b4..7d7f42a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,30 +5,6 @@ on: [ push, pull_request ]
 # Note: As of now the strategy property is not supported when using reusable workflows, so we can't use a build
 # matrix to create the different build cases (see https://docs.github.com/en/actions/using-workflows/reusing-workflows#limitations)
 jobs:
-    build_1_4_230:
-        uses: ./.github/workflows/build_and_publish.yml
-        with:
-            mumble_version: "v1.4.230"
-            docker_version: '0'
-            publish: false
-            update_latest: false
-            platforms: "linux/amd64"
-    build_1_4_274:
-        uses: ./.github/workflows/build_and_publish.yml
-        with:
-            mumble_version: "v1.4.274"
-            docker_version: '0'
-            publish: false
-            update_latest: false
-            platforms: "linux/amd64"
-    build_1_4_287:
-        uses: ./.github/workflows/build_and_publish.yml
-        with:
-            mumble_version: "v1.4.287"
-            docker_version: '0'
-            publish: false
-            update_latest: false
-            platforms: "linux/amd64"
     build_1_5_634:
         uses: ./.github/workflows/build_and_publish.yml
         with:
diff --git a/Dockerfile b/Dockerfile
index 819a5b9..c03df1a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:20.04 as base
+FROM ubuntu:22.04 as base
 
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install --no-install-recommends -y \
@@ -64,8 +64,8 @@ RUN /mumble/scripts/clone.sh && /mumble/scripts/build.sh \
 
 
 FROM base
-ARG MUMBLE_UID=1000
-ARG MUMBLE_GID=1000
+ARG MUMBLE_UID=10000
+ARG MUMBLE_GID=10000
 
 RUN groupadd --gid $MUMBLE_GID mumble && useradd --uid $MUMBLE_UID --gid $MUMBLE_GID mumble
 
diff --git a/README.md b/README.md
index a63d1f3..5a9e5ed 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Docker container using [docker-compose](https://docs.docker.com/compose/). Thus,
 
 In order for Mumble to store permanent data (most notably the database file (by default Mumble uses SQLite)), the image will use a
 [volume](https://docs.docker.com/storage/volumes/) which is mapped to the `/data/` path inside the image. By default the image uses a user with UID
-`1000` and GID of also `1000` but either can be adapted when building the image yourself (see below). You will have to make sure that all file
+`10000` and GID of also `10000` but either can be adapted when building the image yourself (see below). You will have to make sure that all file
 permissions are set up accordingly.
 
 ### Running the container