diff --git a/install.sh b/install.sh
index 55ced3a..502b64c 100755
--- a/install.sh
+++ b/install.sh
@@ -68,6 +68,12 @@ if [ "${1:-}" = "-update" ]; then
         cd "$INSTALL_DIR"
     fi
 
+    # Copy updated templates, static assets, and config files.
+    info "Updating templates and static assets..."
+    sudo_if rsync -a --delete templates/ "$INSTALL_DIR/templates/" 2>/dev/null || true
+    sudo_if rsync -a --delete static/ "$INSTALL_DIR/static/" 2>/dev/null || true
+    sudo_if cp install.sh "$INSTALL_DIR/" 2>/dev/null || true
+
     info "Rebuilding binary..."
     if command -v go &>/dev/null; then
         export GOMODCACHE="${INSTALL_DIR}/.go/mod"
@@ -84,8 +90,11 @@ if [ "${1:-}" = "-update" ]; then
         sudo_if chmod +x app
     fi
 
+    # Fix ownership of any new files.
+    sudo_if chown -R "${APP_USER:-${SUDO_USER:-$(whoami)}}:${APP_USER:-${SUDO_USER:-$(whoami)}}" "$INSTALL_DIR" 2>/dev/null || true
+
     info "Restarting service..."
-    systemctl restart "$SERVICE_NAME"
+    sudo_if systemctl restart "$SERVICE_NAME"
     sleep 2
 
     if systemctl is-active --quiet "$SERVICE_NAME"; then