diff --git a/README.md b/README.md
index 639ba8a..f53a080 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/in
 A puppeting bridge between Matrix and Telegram packaged as a YunoHost service. Messages, notifications (and sometimes media) are bridged between a Telegram user and a Matrix user. Currently the Matrix user can NOT invite other Matrix user in a bridged Telegram room, so only someone with a Telegram account can participate to Telegram group conversations. The ["Mautrix-Telegram"](https://docs.mau.fi/bridges/python/telegram/index.html) bridge is a Synapse App Service and relies on postgresql. Therefore, [Synapse for YunoHost](https://github.com/YunoHost-Apps/synapse_ynh) should be installed beforehand.
 
 
-**Shipped version:** 0.12.2~ynh3
+**Shipped version:** 0.12.2~ynh4
 ## Disclaimers / important information
 
 ## List of known public services
diff --git a/README_fr.md b/README_fr.md
index c6388a0..1c2e568 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -21,7 +21,7 @@ La passerelle ["Mautrix-Telegram"](https://docs.mau.fi/bridges/python/telegram/i
 ** Attention : sauvegardez et restaurez toujours les deux applications Yunohost matrix-synapse et mautrix_telegram en même temps!**
 
 
-**Version incluse :** 0.12.2~ynh3
+**Version incluse :** 0.12.2~ynh4
 ## Avertissements / informations importantes
 
 ## Liste de passerelles publiques
diff --git a/manifest.json b/manifest.json
index 25c6a76..f7c5137 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Telegram puppeting bridge for Matrix/Synapse",
         "fr": "Passerelle Telegram pour Matrix/Synapse"
     },
-    "version": "0.12.2~ynh3",
+    "version": "0.12.2~ynh4",
     "url": "https://docs.mau.fi/bridges/python/telegram/index.html",
     "upstream": {
         "license": "AGPL-3.0-or-later",
diff --git a/scripts/install b/scripts/install
index 415c55f..68abed4 100755
--- a/scripts/install
+++ b/scripts/install
@@ -160,11 +160,7 @@ mkdir -p /var/log/$app
 python3 -m venv $final_path
 export HOME=$final_path
 $final_path/bin/pip3 install --upgrade pip setuptools wheel
-$final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[speedups,qr_login] # metrics,e2be,hq_thumbnails,sqlite,formattednumbers
-
-if [ $encryption -eq 1 ]; then
-  $final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[e2be]
-fi
+$final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[e2be,speedups,qr_login] # metrics,hq_thumbnails,sqlite,formattednumbers
 
 #=================================================
 # REGISTER SYNAPSE APP-SERVICE
diff --git a/scripts/upgrade b/scripts/upgrade
index df3fee4..09995cc 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -76,6 +76,29 @@ then
   ynh_app_setting_set --app=$app --key=appserviceid --value=$appserviceid
 fi
 
+# If db_name doesn't exist, create it
+if [ -z "$db_name" ]
+then
+  db_name=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_name)
+  # db_name and db_user share the same value
+  db_user=$db_name
+  ynh_app_setting_set --app=$app --key=db_name --value=$db_name
+fi
+
+# If db_pwd doesn't exist, create it
+if [ -z "$db_pwd" ]
+then
+  db_pwd=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_pwd)
+  ynh_app_setting_set --app=$app --key=psqlpwd --value=$db_pwd
+fi
+
+# If synapse_registration_path doesn't exist, create it
+if [ -z "$synapse_registration_path" ]
+then
+  synapse_registration_path=$(ynh_app_setting_get --app=$app --key=app_service_registration_path)
+  ynh_app_setting_set --app=$app --key=synapse_registration_path --value=$synapse_registration_path
+fi
+
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -140,11 +163,7 @@ ynh_script_progression --message="Upgrading Mautrix-Bridge Python Module..." --w
 python3 -m venv $final_path
 export HOME=$final_path
 $final_path/bin/pip3 install --upgrade pip setuptools wheel
-$final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[speedups,qr_login] # metrics,e2be,hq_thumbnails,sqlite,formattednumbers
-
-if [ $encryption -eq 1 ]; then
-	$final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[e2be]
-fi
+$final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[e2be,speedups,qr_login] # metrics,hq_thumbnails,sqlite,formattednumbers
 
 #=================================================
 # REGISTER SYNAPSE APP-SERVICE