diff --git a/.env b/.env
index 6b4abcda08..78321209c1 100644
--- a/.env
+++ b/.env
@@ -16,7 +16,7 @@ PHP_IMAGE=ezsystems/php:7.0-v0
 PHP_IMAGE_DEV=ezsystems/php:7.0-v0-dev
 NGINX_IMAGE=nginx:stable
 MYSQL_IMAGE=mariadb:10.0
-SELENIUM_IMAGE=selenium/standalone-firefox
+SELENIUM_IMAGE=selenium/standalone-firefox:2.53.1
 REDIS_IMAGE=redis
 
 # App image name for use if you inted to push it to docker registry/hub.