diff --git a/.github/workflows/updater.sh b/.github/workflows/updater.sh
new file mode 100644
index 0000000..c66f0cf
--- /dev/null
+++ b/.github/workflows/updater.sh
@@ -0,0 +1,145 @@
+#!/bin/bash
+
+#=================================================
+# PACKAGE UPDATING HELPER
+#=================================================
+
+# This script is meant to be run by GitHub Actions
+# The YunoHost-Apps organisation offers a template Action to run this script periodically
+# Since each app is different, maintainers can adapt its contents so as to perform
+# automatic actions when a new upstream release is detected.
+
+#=================================================
+# FETCHING LATEST RELEASE AND ITS ASSETS
+#=================================================
+
+# Fetching information
+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 "'"))
+
+# 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:0:1} == "v" || ${version:0:1} == "V" ]]; then
+    version=${version:1}
+fi
+
+# Setting up the environment variables
+echo "Current version: $current_version"
+echo "Latest release from upstream: $version"
+echo "VERSION=$version" >> $GITHUB_ENV
+# For the time being, let's assume the script will fail
+echo "PROCEED=false" >> $GITHUB_ENV
+
+# Proceed only if the retrieved version is greater than the current one
+if ! dpkg --compare-versions "$current_version" "lt" "$version" ; then
+    echo "::warning ::No new version available"
+    exit 0
+# Proceed only if a PR for this new version does not already exist
+elif git ls-remote -q --exit-code --heads https://github.com/$GITHUB_REPOSITORY.git ci-auto-update-v$version ; then
+    echo "::warning ::A branch already exists for this update"
+    exit 0
+fi
+
+# Each release can hold multiple assets (e.g. binaries for different architectures, source code, etc.)
+echo "${#assets[@]} available asset(s)"
+
+#=================================================
+# UPDATE SOURCE FILES
+#=================================================
+
+# Here we use the $assets variable to get the resources published in the upstream release.
+# Here is an example for Grav, it has to be adapted in accordance with how the upstream releases look like.
+
+# Let's loop over the array of assets URLs
+for asset_url in ${assets[@]}; do
+
+echo "Handling asset at $asset_url"
+
+# Assign the asset to a source file in conf/ directory
+# Here we base the source file name upon a unique keyword in the assets url
+# Leave $src empty to ignore the asset
+case $asset_url in
+  *"linux-386"*)
+    src="app.386"
+    ;;
+  *"linux-amd64"*)
+    src="app.amd64"
+    ;;
+  *"linux-arm64"*)
+    src="app.arm64"
+    ;;
+  *"linux-armv5"*)
+    src="app.armv5"
+    ;;
+  *"linux-armv6"*)
+    src="app.armv6"
+    ;;
+  *"linux-armv7"*)
+    src="app.armv7"
+    ;;
+  *)
+    src=""
+    ;;
+esac
+
+# If $src is not empty, let's process the asset
+if [ ! -z "$src" ]; then
+
+# Create the temporary directory
+tempdir="$(mktemp -d)"
+
+# Download sources and calculate checksum
+filename=${asset_url##*/}
+curl --silent -4 -L $asset_url -o "$tempdir/$filename"
+checksum=$(sha256sum "$tempdir/$filename" | head -c 64)
+
+# Delete temporary directory
+rm -rf $tempdir
+
+# Get extension
+if [[ $filename == *.tar.gz ]]; then
+  extension=tar.gz
+else
+  extension=${filename##*.}
+fi
+
+# Rewrite source file
+cat <<EOT > conf/$src.src
+SOURCE_URL=$asset_url
+SOURCE_SUM=$checksum
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=$extension
+SOURCE_IN_SUBDIR=true
+EOT
+echo "... conf/$src.src updated"
+
+else
+echo "... asset ignored"
+fi
+
+done
+
+#=================================================
+# SPECIFIC UPDATE STEPS
+#=================================================
+
+# Any action on the app's source code can be done.
+# The GitHub Action workflow takes care of committing all changes after this script ends.
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+
+# Replace new version in manifest
+echo "$(jq -s --indent 4 ".[] | .version = \"$version~ynh1\"" manifest.json)" > manifest.json
+
+# No need to update the README, yunohost-bot takes care of it
+
+# The Action will proceed only if the PROCEED environment variable is set to true
+echo "PROCEED=true" >> $GITHUB_ENV
+exit 0
+
diff --git a/.github/workflows/updater.yml b/.github/workflows/updater.yml
new file mode 100644
index 0000000..b037c1b
--- /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 7:00 UTC
+  schedule:
+    - cron:  '0 7 * * *'
+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/README.md b/README.md
index cc592d9..cf7e53b 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/in
 
 Monitoring system and time series database
 
-**Shipped version:** 2.28.0~ynh1
+**Shipped version:** 2.33.1~ynh1
 
 **Demo:** https://demo.do.prometheus.io
 
diff --git a/README_fr.md b/README_fr.md
index e06e414..6a6208a 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -13,7 +13,7 @@ Si vous n'avez pas YunoHost, regardez [ici](https://yunohost.org/#/install) pour
 
 Supervision chronologique de systèmes et services
 
-**Version incluse :** 2.28.0~ynh1
+**Version incluse :** 2.33.1~ynh1
 
 **Démo :** https://demo.do.prometheus.io
 
diff --git a/conf/app.386.src b/conf/app.386.src
index 5020061..a6dba8c 100644
--- a/conf/app.386.src
+++ b/conf/app.386.src
@@ -1,7 +1,5 @@
-SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.28.0/prometheus-2.28.0.linux-386.tar.gz
-SOURCE_SUM=9666d90c981f80d82b605e022eb2af61b65e7d0962a95b6b5fe67cc395cbf915
+SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-386.tar.gz
+SOURCE_SUM=2a02adc1ba695c4efd0ca9c466d253c4c3008d49c2d65339ce4f0f98e2052ee2
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_EXTRACT=true
-SOURCE_FILENAME=prometheus.tar.gz
diff --git a/conf/app.amd64.src b/conf/app.amd64.src
index aa9d32f..1ff5a63 100644
--- a/conf/app.amd64.src
+++ b/conf/app.amd64.src
@@ -1,7 +1,5 @@
-SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.28.0/prometheus-2.28.0.linux-amd64.tar.gz
-SOURCE_SUM=d2d0ded275090a13208114b633abe41c40e14c83ff5ec07230d79b4da1d8e701
+SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-amd64.tar.gz
+SOURCE_SUM=55de29727fc4d3977d3400c54fa222ebb52755bd0201936f1e1052fea6f2b44b
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_EXTRACT=true
-SOURCE_FILENAME=prometheus.tar.gz
diff --git a/conf/app.arm64.src b/conf/app.arm64.src
index 3f98241..abc695c 100644
--- a/conf/app.arm64.src
+++ b/conf/app.arm64.src
@@ -1,7 +1,5 @@
-SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.28.0/prometheus-2.28.0.linux-arm64.tar.gz
-SOURCE_SUM=c6ef6c0ef92bfc9682c9ae5275c5bd5ab2c6f74178201e15f2bfd08cc8a139a8
+SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-arm64.tar.gz
+SOURCE_SUM=21d89df7a98882a1a872bd3210aeaac3915a7f7be9f2ad28c986c80ad64ee77d
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_EXTRACT=true
-SOURCE_FILENAME=prometheus.tar.gz
diff --git a/conf/app.armv5.src b/conf/app.armv5.src
index bffef3d..8f15a66 100644
--- a/conf/app.armv5.src
+++ b/conf/app.armv5.src
@@ -1,7 +1,5 @@
-SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.28.0/prometheus-2.28.0.linux-armv5.tar.gz
-SOURCE_SUM=5cc36a0254c118639a461e52f7736f4b86e0f2775ab552cb426f0a4748c8cd8b
+SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-armv5.tar.gz
+SOURCE_SUM=bc51a6073ac1d90c8ebd548694baeb8c6dff91945cf00b763c65a11412b7f945
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_EXTRACT=true
-SOURCE_FILENAME=prometheus.tar.gz
diff --git a/conf/app.armv6.src b/conf/app.armv6.src
index 55e35d9..e35210d 100644
--- a/conf/app.armv6.src
+++ b/conf/app.armv6.src
@@ -1,7 +1,5 @@
-SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.28.0/prometheus-2.28.0.linux-armv6.tar.gz
-SOURCE_SUM=8346908ad57777d1cd7b2a3e95e0b7beb9891251f768caf863895bb051a65209
+SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-armv6.tar.gz
+SOURCE_SUM=16769a890ce803f571a5c68689dd9c6401a9d80e491352eaefd5eeff6441e460
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_EXTRACT=true
-SOURCE_FILENAME=prometheus.tar.gz
diff --git a/conf/app.armv7.src b/conf/app.armv7.src
index d68a186..b49fcd6 100644
--- a/conf/app.armv7.src
+++ b/conf/app.armv7.src
@@ -1,7 +1,5 @@
-SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.28.0/prometheus-2.28.0.linux-armv7.tar.gz
-SOURCE_SUM=214632282772a45d4ac2c7053f95d252b8eb8c279ff228aba2ac25329ae903f8
+SOURCE_URL=https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-armv7.tar.gz
+SOURCE_SUM=09e285f098c36a5f2e7cf065fb38bd8f65ef262aeda728aac48b8cbb40ef34cc
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_EXTRACT=true
-SOURCE_FILENAME=prometheus.tar.gz
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 3af9f44..a25d1a1 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -6,7 +6,7 @@ location __PATH__ {
     rewrite ^ https://$server_name$request_uri? permanent;
   }
 
-  proxy_pass http://127.0.0.1:__PORT____PATH__;
+  proxy_pass http://127.0.0.1:__PORT__;
   proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
diff --git a/conf/systemd.service b/conf/systemd.service
index f2ba69c..d7eda5c 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -9,7 +9,8 @@ Group=__APP__
 WorkingDirectory=__FINALPATH__/
 ExecStart=__FINALPATH__/prometheus \
   --config.file=__FINALPATH__/prometheus.yml --web.enable-admin-api \
-  --web.external-url=__PATH__ \
+  --web.external-url=__PATH__/ \
+  --web.route-prefix=__PATH__/ \
   --web.listen-address=localhost:__PORT__
 StandardOutput=append:/var/log/__APP__/__APP__.log
 StandardError=inherit
diff --git a/manifest.json b/manifest.json
index 0e496e0..9d903ab 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Monitoring system and time series database",
         "fr": "Supervision chronologique de systèmes et services"
     },
-    "version": "2.28.0~ynh1",
+    "version": "2.33.1~ynh1",
     "url": "https://prometheus.io",
     "upstream": {
         "license": "Apache-2.0",
@@ -30,7 +30,7 @@
         "mysql"
     ],
     "arguments": {
-        "install" : [
+        "install": [
             {
                 "name": "domain",
                 "type": "domain",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 2e05e4d..b1a92dd 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -7,12 +7,14 @@
 version="2.28.0"
 architecture=""
 case $(uname -m) in
-    i386)   architecture="386" ;;
-    x86_64) architecture="amd64" ;;
-    armv5)  architecture="armv5" ;;
-    armv6)  architecture="armv6" ;;
-    armv7)  architecture="armv7" ;;
-    arm)    dpkg --print-architecture | grep -q "arm64" && architecture="arm64" || architecture="unsupported arm" ;;
+    i386)    architecture="386" ;;
+    x86_64)  architecture="amd64" ;;
+    armv5)   architecture="armv5" ;;
+    armv6)   architecture="armv6" ;;
+    armv7)   architecture="armv7" ;;
+    armv7l)  architecture="armv7" ;;
+    aarch64) architecture="arm64" ;;
+    *)       ynh_die --message="Sorry, your architecture $YNH_ARCH is not supported." ;;
 esac
 
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
index 084986c..fa17761 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -94,6 +94,8 @@ then
 	ynh_add_nginx_config
 	# Create a dedicated service config
 	ynh_add_systemd_config
+else
+	path_url="$old_path"
 fi
 
 # Change the domain for NGINX
diff --git a/scripts/install b/scripts/install
index 94ad0e8..2815c83 100755
--- a/scripts/install
+++ b/scripts/install
@@ -113,6 +113,7 @@ ynh_add_systemd_config
 ynh_script_progression --message="Configuring the app..." --weight=2
 
 ynh_replace_string --match_string="localhost:9090" --replace_string="localhost:$port" --target_file="$final_path/prometheus.yml"
+echo "    metrics_path: $path_url/metrics" >> "$final_path/prometheus.yml"
 
 #=================================================
 # GENERIC FINALIZATION