diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index cdcb69c..1b95b7d 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -32,10 +32,15 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install build
-    - name: Set version
+    - name: install envsubts
       run: |
-        VERSION=${GITHUB_REF#refs/tags/}
-        sed -i "s/version='0.0.0',/version='$VERSION',/" setup.py
+        if [ "$(id -u)" = 0 ]; then export SUDO=""; else # Check if we're root
+          export SUDO="sudo";
+        fi
+        command -v gettext >/dev/null 2>&1 || { $SUDO apt -qq update && $SUDO apt -qq install -y gettext; }
+    - name: substitute env vars
+      run: |
+        envsubst < setup.py > setup.py-tmp && mv setup.py-tmp setup.py
     - name: Build package
       run: python -m build
     - name: Publish package
diff --git a/setup.py b/setup.py
index 6f440fe..1abcf40 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 setup(
   name = 'pytouchline_extended',
   packages = ['pytouchline_extended'],
-  version = '0.0.0',
+  version = "$GITHUB_REF_NAME",
   description = 'A Roth Touchline interface library',
   long_description="A simple helper library for controlling a Roth Touchline heat pump controller",
   author = 'Peter Brondum',