diff --git a/Dockerfile.prod.php b/Dockerfile.prod.php
index 254d6f58..6e62a63a 100644
--- a/Dockerfile.prod.php
+++ b/Dockerfile.prod.php
@@ -11,7 +11,7 @@ RUN sed -i 's|http://deb.debian.org/debian|http://archive.debian.org/debian|g' /
     apt-get install --allow-unauthenticated -y libc-client2007e-dev libkrb5-dev libpng-dev libjpeg-dev libfreetype6-dev libcurl4-openssl-dev libxml2-dev libssl-dev libmcrypt-dev libicu-dev && \
     docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ && \
     docker-php-ext-configure imap --with-kerberos --with-imap-ssl && \
-    docker-php-ext-install mysql mbstring gd curl imap
+    docker-php-ext-install mysqli pdo pdo_mysql mbstring gd curl imap
 
 # Set environment variables.
 ENV HOME /root
diff --git a/Dockerfile.stg.php b/Dockerfile.stg.php
index 32da5e7d..698c16a2 100644
--- a/Dockerfile.stg.php
+++ b/Dockerfile.stg.php
@@ -13,7 +13,7 @@ RUN sed -i 's|http://deb.debian.org/debian|http://archive.debian.org/debian|g' /
     apt-get install --allow-unauthenticated -y libc-client2007e-dev libkrb5-dev libpng-dev libjpeg-dev libfreetype6-dev libcurl4-openssl-dev libxml2-dev libssl-dev libmcrypt-dev libicu-dev && \
     docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ && \
     docker-php-ext-configure imap --with-kerberos --with-imap-ssl && \
-    docker-php-ext-install mysql mbstring gd curl imap
+    docker-php-ext-install mysqli pdo pdo_mysql mbstring gd curl imap
 
 # Set environment variables.
 ENV HOME /root