diff --git a/README.md b/README.md
index d35789d..2159a22 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ It shall NOT be edited by hand.
 Regularly create deduplicated, encrypted backups sent to another server using Borg
 
 [![🌐 Official app website](https://img.shields.io/badge/Official_app_website-darkgreen?style=for-the-badge)](https://www.borgbackup.org)
-[![Version: 1.4.5~ynh3](https://img.shields.io/badge/Version-1.4.5~ynh3-rgb(18,138,11)?style=for-the-badge)](https://ci-apps.yunohost.org/ci/apps/borg/)
+[![Version: 1.4.5~ynh4](https://img.shields.io/badge/Version-1.4.5~ynh4-rgb(18,138,11)?style=for-the-badge)](https://ci-apps.yunohost.org/ci/apps/borg/)
 
 <div align="center">
 <a href="https://apps.yunohost.org/app/borg"><img height="100px" src="https://github.com/YunoHost/yunohost-artwork/raw/refs/heads/main/badges/neopossum-badges/badge_more_info_on_the_appstore.svg"/></a>
diff --git a/config_panel.toml b/config_panel.toml
index f55ad18..52c4dbd 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -36,6 +36,21 @@ name.fr = "Configuration de Borg"
         type = "string"
         readonly = true
 
+        [main.general.change_passphrase]
+        ask.en = "Change the backup passphrase"
+        ask.fr = "Modifier le phrase de passe des sauvegardes"
+        type = "boolean"
+        bind = "null"
+
+        [main.general.new_passphrase]
+        ask.en = "Fill your new passphrase (NEEDS TO BE STRONG)"
+        ask.fr = "Renseignez votre nouvelle phrase de passe (DOIT ÊTRE ROBUSTE)"
+        type = "password"
+        bind = "null"
+        help.en = "Keep it safe! There will be **no way** to restore your backup if you lose it. Do not communicate it to the remote host server holder, or anyone else."
+        help.fr = "Gardez-la précieusement ! Il sera **impossible** de restaurer vos sauvegardes sans celle-ci. Elle est destinée à rester **secrète** : ne la donnez **pas** à la personne qui gère le serveur distant - où à n'importe qui d'autre !"
+        visible = "change_passphrase"
+
         [main.general.remote_path]
         ask.en = "Remote borg command (remote-path)"
         type = "string"
diff --git a/manifest.toml b/manifest.toml
index f4772c1..5c6a32a 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -7,7 +7,7 @@ name = "Borg Backup"
 description.en = "Regularly create deduplicated, encrypted backups sent to another server using Borg"
 description.fr = "Créez régulièrement des sauvegardes dédupliquées et chiffées envoyées sur un autre serveur à l'aide de Borg"
 
-version = "1.4.5~ynh3"
+version = "1.4.5~ynh4"
 
 maintainers = ["ljf", "fflorent"]
 
@@ -41,8 +41,8 @@ ram.runtime = "50M"
     example = "ssh://john@serverb.tld:22/~/backup"
 
     [install.passphrase]
-    ask.en = "Provide a strong passphrase to encrypt your backups. No blank space"
-    ask.fr = "Indiquez une phrase de passe forte pour chiffrer vos sauvegardes. Sans espaces"
+    ask.en = "Provide a strong passphrase to encrypt your backups"
+    ask.fr = "Indiquez une phrase de passe robuste pour chiffrer vos sauvegardes"
     help.en = "Keep it safe! There will be **no way** to restore your backup if you lose it. Do not communicate it to the remote host server holder, or anyone else."
     help.fr = "Gardez-la précieusement ! Il sera **impossible** de restaurer vos sauvegardes sans celle-ci. Elle est destinée à rester **secrète** : ne la donnez **pas** à la personne qui gère le serveur distant - où à n'importe qui d'autre !"
     type = "password"
diff --git a/scripts/config b/scripts/config
index aacacfc..ff6cb89 100644
--- a/scripts/config
+++ b/scripts/config
@@ -57,9 +57,6 @@ get__data_multimedia() {
 get__last_backups() {
 
     local backup_list
-    # Source the env file inside the command substitution ("$(...)")
-    # so the variables don't pollute the rest of the function and of the script.
-    # Indeed the command substitution spawns a subshell which is convenient here.
     backup_list=$(ynh_exec_as_app "$borg_with_env_vars" list --short --last 50 "${repository}" 2> /dev/null)
 
     if [ -z "$backup_list" ]; then
@@ -123,5 +120,21 @@ set__remote_path() {
     ynh_config_add --template="env.jinja" --destination="$install_dir/.env" --jinja
 }
 
+set__new_passphrase() {
+    if [ -n "${new_passphrase}" ]; then
+        (
+            set -eEux -o pipefail
+            set -a
+            source "${install_dir}/.env"
+            BORG_NEW_PASSPHRASE="${new_passphrase}" "${install_dir}/venv/bin/borg" key change-passphrase
+        )
+        ynh_app_setting_set --key=passphrase --value="${new_passphrase}"
+        # store the new value into the `passphrase` variable so the template for `.env`
+        # takes the changes into account
+        passphrase="${new_passphrase}"
+        ynh_config_add --template="env.jinja" --destination="${install_dir}/.env" --jinja
+    fi
+}
+
 #=================================================
 ynh_app_config_run $1