diff --git a/Dockerfile b/Dockerfile
index 82e2ff7..bcba908 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,16 +2,18 @@ FROM serversideup/php:8.3-fpm-nginx
 
 ARG HTTP_PROXY
 ARG HTTPS_PROXY
-ENV HTTP_PROXY=$HTTP_PROXY
-ENV HTTPS_PROXY=$HTTPS_PROXY
 
 COPY --chown=www-data:www-data . /var/www/html/
 
 ENV COMPOSER_HOME=/tmp/composer
 USER www-data
 RUN if [ -d /var/www/html/vendor ]; then \
-        COMPOSER_DISABLE_NETWORK=1 composer install --no-dev --optimize-autoloader --no-interaction; \
+        echo "vendor/ found — installing offline" && \
+        HTTP_PROXY="" HTTPS_PROXY="" http_proxy="" https_proxy="" \
+        COMPOSER_DISABLE_NETWORK=1 \
+        composer install --no-dev --optimize-autoloader --no-interaction; \
     else \
+        echo "vendor/ not found — installing from proxy" && \
         composer config -g repos.packagist composer https://registry.parsaaghayi.ir/repository/composer-proxy/ && \
         composer install --no-dev --optimize-autoloader --no-interaction; \
     fi