diff --git a/app/Dockerfile b/app/Dockerfile
index d7c57a3..594f068 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -5,7 +5,7 @@ RUN apk add --no-cache php7 php7-fpm \
 	php7-pdo php7-gd php7-pgsql php7-pdo_pgsql php7-mbstring \
 	php7-intl php7-xml php7-curl php7-session \
 	php7-dom php7-fileinfo php7-json \
-	php7-pcntl php7-posix \
+	php7-pcntl php7-posix php7-zip \
 	git postgresql-client sudo
 
 ADD startup.sh /