diff --git a/serv_nginx/certbot/Dockerfile b/serv_nginx/certbot/Dockerfile
index f48ed99..5db876d 100644
--- a/serv_nginx/certbot/Dockerfile
+++ b/serv_nginx/certbot/Dockerfile
@@ -1,11 +1,9 @@
 FROM certbot/certbot
 
 # Установка зависимостей и проверка наличия cron
-RUN apt-get update && \
-    # Проверяем, установлен ли cron
-    if ! command -v crond > /dev/null 2>&1; then \
+RUN if ! which crond > /dev/null 2>&1; then \
         echo "Cron not found. Installing cron..."; \
-        apt-get install -y cron; \
+        apt-get update && apt-get install -y cron; \
     else \
         echo "Cron is already installed."; \
     fi && \