diff --git a/Dockerfile b/Dockerfile
index 8c46b4d8..b46a0d24 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,10 +22,14 @@ ENV LANG=en_GB.UTF-8
 #       Dockerfile _and pin the versions_! Eg:
 #       RUN pecl install memcached-2.2.0 && docker-php-ext-enable memcached
 
-# install some OS packages we need
-RUN apt-get update
-RUN apt-get install -y --no-install-recommends libfreetype6-dev libjpeg62-turbo-dev libpng-dev libgmp-dev libldap2-dev netcat curl sqlite3 libsqlite3-dev libpq-dev libzip-dev unzip vim-tiny gosu git
-    # install php extensions
+
+RUN apt-get update \
+    && curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add - \
+    && curl https://packages.microsoft.com/config/debian/9/prod.list \
+        > /etc/apt/sources.list.d/mssql-release.list
+
+RUN apt-get install -y --no-install-recommends locales apt-transport-https libfreetype6-dev libjpeg62-turbo-dev libpng-dev libgmp-dev libldap2-dev netcat unixodbc-dev msodbcsql17 curl sqlite3 libsqlite3-dev libpq-dev libzip-dev unzip vim-tiny gosu git
+
 RUN docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql \
     # && if [ "${PHP_VERSION}" = "7.4" ]; then docker-php-ext-configure gd --with-freetype --with-jpeg; else docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/; fi \
     && docker-php-ext-install -j$(nproc) gd pdo pdo_mysql pdo_pgsql pdo_sqlite pgsql zip gmp bcmath pcntl ldap sysvmsg exif \