diff --git a/Dockerfile b/Dockerfile
index 1258fe50f..130d7e738 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ ARG VERSION
 RUN apk update && \
     apk add openssl unzip nginx bash ca-certificates s6 curl ssmtp mailx php7 php7-phar php7-curl \
     php7-fpm php7-json php7-zlib php7-xml php7-dom php7-ctype php7-opcache php7-zip php7-iconv \
-    php7-pdo php7-pdo_mysql php7-pdo_sqlite php7-pdo_pgsql php7-mbstring php7-session \
+    php7-pdo php7-pdo_mysql php7-pdo_sqlite php7-pdo_pgsql php7-mbstring php7-session php7-bcmath \
     php7-gd php7-mcrypt php7-openssl php7-sockets php7-posix php7-ldap php7-simplexml && \
     rm -rf /var/cache/apk/* && \
     rm -rf /var/www/localhost && \