diff --git a/.VERSION b/.VERSION
new file mode 100644
index 0000000..ef5c481
--- /dev/null
+++ b/.VERSION
@@ -0,0 +1 @@
+5.0.0-dev
\ No newline at end of file
diff --git a/.github/workflows/build-publish.yml b/.github/workflows/build-publish.yml
index e8beac7..99c682e 100644
--- a/.github/workflows/build-publish.yml
+++ b/.github/workflows/build-publish.yml
@@ -12,6 +12,12 @@ jobs:
     steps:
     - uses: actions/checkout@master
 
+    - name: Update version file ⬆️
+      uses: brettdorrans/write-version-to-file@v1.1.0
+      with:
+        filename: 'setup.py'
+        placeholder: 'latest-dev'
+
     - name: Set up Python 3.10
       uses: actions/setup-python@v3
       with:
diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 585ae85..094e127 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -30,6 +30,12 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
+      - name: Update version file ⬆️
+        uses: brettdorrans/write-version-to-file@v1.1.0
+        with:
+          filename: 'setup.py'
+          placeholder: 'latest-dev'
+
       - name: Log in to the Container registry
         uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
         with:
@@ -43,7 +49,7 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
-      - name: Build and push Docker image
+      - name: Build and push Docker image 📦 to ghcr
         uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
         with:
           context: .
diff --git a/Dockerfile b/Dockerfile
index 7017e13..ea3e7eb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,9 @@ RUN apk add --no-cache --virtual .build-deps \
     apk add --no-cache libxslt libxml2
 
 RUN mkdir -p /src
-COPY . /src
+COPY ./withings_sync /src
+COPY ./setup.py /src
+COPY ./.VERSION /src
 
 RUN cd /src && \
     python3 ./setup.py install
diff --git a/README.md b/README.md
index 9b4cb38..8fa5db2 100644
--- a/README.md
+++ b/README.md
@@ -252,15 +252,17 @@ This will run the job every 3 hours (at a random minute) and writing the output
 
 Release works via the GitHub [Draft a new Release](https://github.com/jaroslawhartman/withings-sync/releases/new) 
 function.
-Keep in mind to bump the `version` key in `setup.py`.
+The `version` key in `setup.py` will be bumped automatically (Version will be written to .VERSION file).
+Keep in mind to update the `.VERSION` if a major release is done.
 
 ### Docker Image
 
 An image is created magically by GitHub Action and published 
 to [ghcr](https://github.com/jaroslawhartman/withings-sync/pkgs/container/withings-sync).
 
-### pypi
+### Manual release: pypi
 
+Will be conducted automatically within the Github-Release cycle.
 You'll find a script to create and upload a release to pypi here `contrib/do_release.sh`.
 It requires [twine](https://pypi.org/project/twine/).
 This needs the permission on the [pypi-project](https://pypi.org/project/withings-sync/).
diff --git a/setup.py b/setup.py
index ce39792..c5d8bff 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ def read(fname):
 
 setup(
     name="withings-sync",
-    version="4.2.4",
+    version=read(".VERSION"),
     author="Masayuki Hamasaki, Steffen Vogel",
     author_email="post@steffenvogel.de",
     description="A tool for synchronisation of Withings (ex. Nokia Health Body) to Garmin Connect and Trainer Road.",