diff --git a/scripts/upgrade b/scripts/upgrade
index 9496212..09b1865 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
 
-#=================================================
-# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -9,14 +7,6 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# CHECK VERSION
-#=================================================
-
-upgrade_type=$(ynh_check_app_version_changed)
-
-#=================================================
-# STANDARD UPGRADE STEPS
 #=================================================
 # STOP SYSTEMD SERVICE
 #=================================================
@@ -35,14 +25,10 @@ ynh_permission_url --permission="main" --auth_header=false
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_script_progression --message="Upgrading source files..."
 
-if [ "$upgrade_type" == "UPGRADE_APP" ]
-then
-	ynh_script_progression --message="Upgrading source files..."
-
-	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir"
-fi
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="config.json5"
 
 chmod -R u=rwX,g=rX,o= "$install_dir"
 chown -R $app:$app "$install_dir"