diff --git a/scripts/_common.sh b/scripts/_common.sh
index 021b8f3a..ab6cf660 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -7,7 +7,7 @@
 # dependencies used by the app
 pkg_dependencies="postgresql redis-server imagemagick jpegoptim optipng pngquant supervisor"
 
-YNH_PHP_VERSION="${YNH_PHP_VERSION}"
+YNH_PHP_VERSION="7.3"
 
 extra_php_dependencies="php${YNH_PHP_VERSION}-bcmath php${YNH_PHP_VERSION}-cli php${YNH_PHP_VERSION}-ctype php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-exif php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-iconv php${YNH_PHP_VERSION}-intl php${YNH_PHP_VERSION}-json php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-tokenizer php${YNH_PHP_VERSION}-simplexml php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-zip php${YNH_PHP_VERSION}-pgsql php${YNH_PHP_VERSION}-fileinfo php${YNH_PHP_VERSION}-pdo"