diff --git a/.github/workflows/updater.sh b/.github/workflows/updater.sh
index 72eb5cb..d6241f0 100755
--- a/.github/workflows/updater.sh
+++ b/.github/workflows/updater.sh
@@ -9,9 +9,6 @@
 # Since each app is different, maintainers can adapt its contents so as to perform
 # automatic actions when a new upstream release is detected.
 
-# Remove this exit command when you are ready to run this Action
-exit 1
-
 #=================================================
 # FETCHING LATEST RELEASE AND ITS ASSETS
 #=================================================
@@ -20,12 +17,16 @@ exit 1
 current_version=$(cat manifest.json | jq -j '.version|split("~")[0]')
 repo=$(cat manifest.json | jq -j '.upstream.code|split("https://github.com/")[1]')
 # Some jq magic is needed, because the latest upstream release is not always the latest version (e.g. security patches for older versions)
-version=$(curl --silent "https://api.github.com/repos/$repo/releases" | jq -r '.[] | select( .prerelease != true ) | .tag_name' | sort -V | tail -1)
-assets=($(curl --silent "https://api.github.com/repos/$repo/releases" | jq -r '[ .[] | select(.tag_name=="'$version'").assets[].browser_download_url ] | join(" ") | @sh' | tr -d "'"))
+tag_name=$(curl --silent "https://api.github.com/repos/$repo/releases" | jq -r '.[] | select( .prerelease != true ) | .tag_name' | sort -V | tail -1)
+version=$(curl --silent "https://api.github.com/repos/$repo/releases" | jq -r '.[] | select( .prerelease != true ) | .name' | sort -V | tail -1)
+assets=($(curl --silent "https://api.github.com/repos/$repo/releases" | jq -r '[ .[] | select(.tag_name=="'$tag_name'").tarball_url ] | join(" ") | @sh' | tr -d "'"))
 
 # Later down the script, we assume the version has only digits and dots
 # Sometimes the release name starts with a "v", so let's filter it out.
 # You may need more tweaks here if the upstream repository has different naming conventions. 
+if [[ ${version:0:8} == "version " || ${version:0:8} == "Version " || ${version:0:8} == "VERSION " ]]; then
+    version=${version:8}
+fi
 if [[ ${version:0:1} == "v" || ${version:0:1} == "V" ]]; then
     version=${version:1}
 fi
@@ -67,15 +68,8 @@ echo "Handling asset at $asset_url"
 # Here we base the source file name upon a unique keyword in the assets url (admin vs. update)
 # Leave $src empty to ignore the asset
 case $asset_url in
-  *"admin"*)
+  *"tarball"*)
     src="app"
-    ;;
-  *"update"*)
-    src="app-upgrade"
-    ;;
-  *)
-    src=""
-    ;;
 esac
 
 # If $src is not empty, let's process the asset
@@ -104,9 +98,11 @@ cat <<EOT > conf/$src.src
 SOURCE_URL=$asset_url
 SOURCE_SUM=$checksum
 SOURCE_SUM_PRG=sha256sum
+
 SOURCE_FORMAT=$extension
 SOURCE_IN_SUBDIR=true
 SOURCE_FILENAME=
+SOURCE_EXTRACT=true
 EOT
 echo "... conf/$src.src updated"
 
diff --git a/.github/workflows/updater.yml b/.github/workflows/updater.yml
new file mode 100644
index 0000000..5f1dcc1
--- /dev/null
+++ b/.github/workflows/updater.yml
@@ -0,0 +1,50 @@
+# This workflow allows GitHub Actions to automagically update your app whenever a new upstream release is detected.
+# You need to enable Actions in your repository settings, and fetch this Action from the YunoHost-Apps organization.
+# This file should be enough by itself, but feel free to tune it to your needs.
+# It calls updater.sh, which is where you should put the app-specific update steps.
+name: Check for new upstream releases
+on:
+  # Allow to manually trigger the workflow
+  workflow_dispatch:
+  # Run it every day at 6:00 UTC
+  schedule:
+    - cron:  '0 6 * * *'
+jobs:
+  updater:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fetch the source code
+        uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run the updater script
+        id: run_updater
+        run: |
+          # Setting up Git user
+          git config --global user.name 'yunohost-bot'
+          git config --global user.email 'yunohost-bot@users.noreply.github.com'
+          # Run the updater script
+          /bin/bash .github/workflows/updater.sh
+      - name: Commit changes
+        id: commit
+        if: ${{ env.PROCEED == 'true' }}
+        run: |
+          git commit -am "Upgrade to v$VERSION"
+      - name: Create Pull Request
+        id: cpr
+        if: ${{ env.PROCEED == 'true' }}
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: Update to version ${{ env.VERSION }}
+          committer: 'yunohost-bot <yunohost-bot@users.noreply.github.com>'
+          author: 'yunohost-bot <yunohost-bot@users.noreply.github.com>'
+          signoff: false
+          base: testing
+          branch: ci-auto-update-v${{ env.VERSION }}
+          delete-branch: true
+          title: 'Upgrade to version ${{ env.VERSION }}'
+          body: |
+            Upgrade to v${{ env.VERSION }}
+          draft: false
+
diff --git a/manifest.json b/manifest.json
index 65dd630..5d27e41 100644
--- a/manifest.json
+++ b/manifest.json
@@ -5,7 +5,7 @@
     "description": {
         "en": "Collaborative platform software intended for (not only technical) team collaboration."
     },
-    "version": "4.1.3~ynh1",
+    "version": "4.2.0~ynh1",
     "url": "https://www.tracim.fr",
     "upstream": {
         "license": "AGPL-3.0-or-later,LGPL-3.0-or-later,CC-BY-SA-2.5,MIT",