diff --git a/docker-compose.yml b/docker-compose.yml
index 8bff74f..2649ec3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -112,6 +112,8 @@ services:
       build:
         context: ./php-worker
         dockerfile: "Dockerfile-${PHP_VERSION}"
+        args:
+          - INSTALL_PGSQL=${PHP_WORKER_INSTALL_PGSQL}
       volumes_from:
         - applications
       depends_on:
diff --git a/env-example b/env-example
index 692f08a..95d5e25 100644
--- a/env-example
+++ b/env-example
@@ -88,6 +88,10 @@ PHP_FPM_INSTALL_IMAGE_OPTIMIZERS=false
 PHP_FPM_INSTALL_IMAGEMAGICK=false
 PHP_FPM_INSTALL_PG_CLIENT=false
 
+### PHP_WORKER #########################################################################################################
+
+PHP_WORKER_INSTALL_PGSQL=false
+
 ### NGINX ##############################################################################################################
 
 NGINX_HOST_HTTP_PORT=80
diff --git a/php-worker/Dockerfile-70 b/php-worker/Dockerfile-70
index 8b7dd60..030bf8b 100644
--- a/php-worker/Dockerfile-70
+++ b/php-worker/Dockerfile-70
@@ -24,6 +24,13 @@ RUN apk --update add wget \
 RUN docker-php-ext-install mysqli mbstring pdo pdo_mysql mcrypt tokenizer xml
 RUN pecl channel-update pecl.php.net && pecl install memcached && docker-php-ext-enable memcached
 
+# Install PostgreSQL drivers:
+ARG INSTALL_PGSQL=false
+RUN if [ ${INSTALL_PGSQL} = true ]; then \
+    apk --update add postgresql-dev \
+        && docker-php-ext-install pdo_pgsql \
+;fi
+
 RUN rm /var/cache/apk/* \
     && mkdir -p /var/www
 
diff --git a/php-worker/Dockerfile-71 b/php-worker/Dockerfile-71
index 697efb6..eeebe8d 100644
--- a/php-worker/Dockerfile-71
+++ b/php-worker/Dockerfile-71
@@ -24,6 +24,13 @@ RUN apk --update add wget \
 RUN docker-php-ext-install mysqli mbstring pdo pdo_mysql mcrypt tokenizer xml
 RUN pecl channel-update pecl.php.net && pecl install memcached && docker-php-ext-enable memcached
 
+# Install PostgreSQL drivers:
+ARG INSTALL_PGSQL=false
+RUN if [ ${INSTALL_PGSQL} = true ]; then \
+    apk --update add postgresql-dev \
+        && docker-php-ext-install pdo_pgsql \
+;fi
+
 RUN rm /var/cache/apk/* \
     && mkdir -p /var/www