diff --git a/README.md b/README.md
index a8108fc..ca3ad56 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/in
 ## Overview
 CryptPad is a collaborative encrypted document editor in real time. It is a privacy-friendly alternative to popular office tools and cloud services. All content stored in CryptPad is encrypted before being sent, which means that no one can access your data unless you give them the keys. You can share access to a document simply by sharing the link.
 
-**Shipped version:** 4.2.0
+**Shipped version:** 4.2.1
 
 ## Screenshots
 
diff --git a/README_fr.md b/README_fr.md
index 5ad1d2e..80f776c 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -11,7 +11,7 @@ Si vous n'avez pas YunoHost, consultez [le guide](https://yunohost.org/#/install
 ## Vue d'ensemble
 CryptPad est un éditeur de documents chiffrés collaboratifs en temps réel. C'est une alternative respectant la vie privée aux outils office et aux services cloud populaires. Tout le contenu stocké dans CryptPad est chiffré avant d'être envoyé, ce qui signifie que personne ne peut accéder à vos données à moins que vous ne leur donniez les clés. Vous pouvez partager l'accès à un document simplement en partageant le lien.
 
-**Version incluse :** 4.2.0
+**Version incluse :** 4.2.1
 
 ## Captures d'écran
 
diff --git a/conf/app.src b/conf/app.src
index 29a88b7..804fdd7 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,6 +1,6 @@
-SOURCE_URL=https://github.com/xwiki-labs/cryptpad/archive/4.2.0.tar.gz
-SOURCE_SUM=6ff68e65d7222890ab5f0ca144d916ba8f9db90363efa3aed6abeac8624715ce
+SOURCE_URL=https://github.com/xwiki-labs/cryptpad/archive/4.2.1.tar.gz
+SOURCE_SUM=a54a254f696f7aaa6e2492d6561bccd62919217c7ece3cff97179b9746802128
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_FILENAME=cryptpad-4.2.0.tar.gz
+SOURCE_FILENAME=cryptpad-4.2.1.tar.gz
diff --git a/manifest.json b/manifest.json
index c1769d7..bb089c7 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Zero Knowledge realtime collaborative editor",
         "fr": "Éditeur chiffré collaboratif en temps réel."
     },
-    "version": "4.2.0~ynh1",
+    "version": "4.2.1~ynh1",
     "url": "https://cryptpad.fr/",
     "license": "AGPL-3.0-only",
     "maintainer": {
@@ -15,7 +15,7 @@
         "url": "https://frju365.yunohost.support"
     },
     "requirements": {
-        "yunohost": ">= 4.0.0"
+        "yunohost": ">= 4.1.7"
     },
     "multi_instance": false,
     "services": [
diff --git a/scripts/install b/scripts/install
index d127c50..7399b7c 100644
--- a/scripts/install
+++ b/scripts/install
@@ -104,8 +104,6 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Configuring a systemd service..." --weight=1
 
-ynh_replace_string --match_string="__APP__"       --replace_string="$app"        --target_file="../conf/systemd.service"
-ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="../conf/systemd.service"
 ynh_replace_string --match_string="__ENV_PATH__"  --replace_string="$PATH"       --target_file="../conf/systemd.service"
 ynh_replace_string --match_string="__YNH_NPM__"   --replace_string="$ynh_npm"    --target_file="../conf/systemd.service"
 
@@ -118,8 +116,8 @@ ynh_add_systemd_config
 # Copy default configuration file
 mv "../conf/config.js" "$final_path/config/config.js"
 
-ynh_replace_string --match_string="__PORT__"       --replace_string="$port"       --target_file="$final_path/config/config.js"
-ynh_replace_string --match_string="__PORTI__"      --replace_string="$porti"      --target_file="$final_path/config/config.js"
+ynh_replace_string --match_string="__PORT__"       --replace_string="$port"  --target_file="$final_path/config/config.js"
+ynh_replace_string --match_string="__PORTI__"      --replace_string="$porti" --target_file="$final_path/config/config.js"
 ynh_replace_string --match_string="__ADMIN_MAIL__" --replace_string="$email" --target_file="$final_path/config/config.js"
 
 # Store file checksum to detected user modifications on upgrade
@@ -167,7 +165,6 @@ ynh_script_progression --message="Configuring permissions..." --weight=1
 # Make app public if necessary
 if [ $is_public -eq 1 ]
 then
-	# unprotected_uris allows SSO credentials to be passed anyway.
 	ynh_permission_update --permission="main" --add="visitors"
 fi
 
diff --git a/scripts/restore b/scripts/restore
index adde845..a63cc5b 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -29,7 +29,6 @@ app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
-is_public=$(ynh_app_setting_get --app=$app --key=is_public)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 1c94382..966e102 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -146,8 +146,6 @@ popd || ynh_die
 #=================================================
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
 
-ynh_replace_string --match_string="__APP__"       --replace_string="$app"        --target_file="../conf/systemd.service"
-ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="../conf/systemd.service"
 ynh_replace_string --match_string="__ENV_PATH__"  --replace_string="$PATH"       --target_file="../conf/systemd.service"
 ynh_replace_string --match_string="__YNH_NPM__"   --replace_string="$ynh_npm"    --target_file="../conf/systemd.service"