diff --git a/backend/package.json b/backend/package.json
index 836a99f..f483daf 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -27,10 +27,10 @@
     "jsonwebtoken": "^9.0.2",
     "morgan": "^1.10.0",
     "mysql2": "^3.6.5",
-    "nodemailer": "^6.9.7",
+    "nodemailer": "^7.0.9",
     "passport": "^0.7.0",
     "passport-google-oauth20": "^2.0.0",
-    "sequelize": "^6.35.2"
+    "sequelize": "^6.37.7"
   },
   "devDependencies": {
     "nodemon": "^3.0.2"
diff --git a/deploy.sh b/deploy.sh
index 8718edb..14c0893 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -171,11 +171,22 @@ copy_project_files() {
     
     CURRENT_DIR=$(pwd)
     
+    print_info "Quell-Verzeichnis: $CURRENT_DIR"
+    print_info "Ziel-Verzeichnis: $PROJECT_DIR"
+    
+    # Erstelle Ziel-Verzeichnisse falls nicht vorhanden
+    mkdir -p "$BACKEND_DIR"
+    mkdir -p "$FRONTEND_DIR"
+    
     print_info "Kopiere Backend..."
-    rsync -a --exclude 'node_modules' "$CURRENT_DIR/backend/" "$BACKEND_DIR/"
+    rsync -av --exclude 'node_modules' --exclude '.env' --delete "$CURRENT_DIR/backend/" "$BACKEND_DIR/"
     
     print_info "Kopiere Frontend..."
-    rsync -a --exclude 'node_modules' --exclude 'dist' "$CURRENT_DIR/frontend/" "$FRONTEND_DIR/"
+    rsync -av --exclude 'node_modules' --exclude 'dist' --exclude '.env*' --delete "$CURRENT_DIR/frontend/" "$FRONTEND_DIR/"
+    
+    print_info "Kopiere Root-Dateien..."
+    rsync -av --exclude 'node_modules' --exclude '.git' --exclude 'frontend' --exclude 'backend' \
+        "$CURRENT_DIR"/*.{sh,conf,md,js,json,service} "$PROJECT_DIR/" 2>/dev/null || true
     
     print_success "Projekt-Dateien kopiert!"
 }
@@ -423,11 +434,36 @@ setup_firewall() {
 do_update() {
     print_header "Update $PROJECT_NAME"
     
+    CURRENT_DIR=$(pwd)
+    
+    # Prüfe ob wir im Quell-Verzeichnis sind
+    if [ ! -f "deploy.sh" ] || [ ! -d "backend" ] || [ ! -d "frontend" ]; then
+        print_error "Führe das Script aus dem Projekt-Verzeichnis aus!"
+        print_info "Aktuell in: $CURRENT_DIR"
+        print_info "Erwarte: backend/, frontend/ und deploy.sh im aktuellen Verzeichnis"
+        exit 1
+    fi
+    
+    print_info "Quell-Verzeichnis: $CURRENT_DIR"
+    print_info "Ziel-Verzeichnis: $PROJECT_DIR"
+    
     # Backup erstellen
     do_backup
     
+    # Kopiere aktualisierte Dateien
+    print_header "Kopiere aktualisierte Dateien"
+    
+    print_info "Kopiere Backend..."
+    rsync -av --exclude 'node_modules' --exclude '.env' --delete "$CURRENT_DIR/backend/" "$BACKEND_DIR/"
+    
+    print_info "Kopiere Frontend..."
+    rsync -av --exclude 'node_modules' --exclude 'dist' --exclude '.env*' --delete "$CURRENT_DIR/frontend/" "$FRONTEND_DIR/"
+    
+    print_info "Kopiere Konfigurations-Dateien..."
+    rsync -av "$CURRENT_DIR"/*.{sh,conf,md,service} "$PROJECT_DIR/" 2>/dev/null || true
+    
     # Backend aktualisieren
-    print_info "Aktualisiere Backend..."
+    print_info "Aktualisiere Backend Dependencies..."
     cd $BACKEND_DIR
     npm install --production
     
diff --git a/package-lock.json b/package-lock.json
index 362e628..c8a99d7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,10 +32,10 @@
         "jsonwebtoken": "^9.0.2",
         "morgan": "^1.10.0",
         "mysql2": "^3.6.5",
-        "nodemailer": "^6.9.7",
+        "nodemailer": "^7.0.9",
         "passport": "^0.7.0",
         "passport-google-oauth20": "^2.0.0",
-        "sequelize": "^6.35.2"
+        "sequelize": "^6.37.7"
       },
       "devDependencies": {
         "nodemon": "^3.0.2"
@@ -943,9 +943,9 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "24.7.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.7.2.tgz",
-      "integrity": "sha512-/NbVmcGTP+lj5oa4yiYxxeBjRivKQ5Ns1eSZeB99ExsEQ6rX5XYU1Zy/gGxY/ilqtD4Etx9mKyrPxZRetiahhA==",
+      "version": "24.8.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.8.1.tgz",
+      "integrity": "sha512-alv65KGRadQVfVcG69MuB4IzdYVpRwMG/mq8KWOaoOdyY617P5ivaDiMCGOFDWD2sAn5Q0mR3mRtUOgm99hL9Q==",
       "license": "MIT",
       "dependencies": {
         "undici-types": "~7.14.0"
@@ -3391,9 +3391,9 @@
       }
     },
     "node_modules/nodemailer": {
-      "version": "6.10.1",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.10.1.tgz",
-      "integrity": "sha512-Z+iLaBGVaSjbIzQ4pX6XV41HrooLsQ10ZWPUehGmuantvzWoDVBnmsdUcOIDM1t+yPor5pDhVlDESgOMEGxhHA==",
+      "version": "7.0.9",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-7.0.9.tgz",
+      "integrity": "sha512-9/Qm0qXIByEP8lEV2qOqcAW7bRpL8CR9jcTwk3NBnHJNmP9fIJ86g2fgmIXqHY+nj55ZEMwWqYAT2QTDpRUYiQ==",
       "license": "MIT-0",
       "engines": {
         "node": ">=6.0.0"