diff --git a/docs/contributing/upgrading-monorepo.md b/docs/contributing/upgrading-monorepo.md
index 43d62b68ab7..7a385bd6eae 100644
--- a/docs/contributing/upgrading-monorepo.md
+++ b/docs/contributing/upgrading-monorepo.md
@@ -11,6 +11,8 @@ Typical upgrade sequence should be:
     - either rebuild your Docker images with `docker-compose up -d --build` or add `ELASTIC_SEARCH_INDEX_PREFIX=''` to your `.env` files in the microservice root directories, otherwise all requests to the microservices will throw `EnvNotFoundException`
 - [#679 webserver container starts after php-fpm is started](https://github.com/shopsys/shopsys/pull/679)
     - add `depends_on: [php-fpm]` into `webserver` service of your `docker-compose.yml` file so webserver will not fail on error `host not found in upstream php-fpm:9000`
+- [#694 PHP 7.3 support](https://github.com/shopsys/shopsys/pull/694)
+    - rebuild your Docker images with `docker-compose up -d --build`
 
 ## [From 7.0.0-beta2 to v7.0.0-beta3](https://github.com/shopsys/shopsys/compare/v7.0.0-beta2...v7.0.0-beta3)
 - *(MacOS only)* [#503 updated docker-sync configuration](https://github.com/shopsys/shopsys/pull/503/)
diff --git a/docs/installation/native-installation.md b/docs/installation/native-installation.md
index f68f48a55e4..b7f8a60ca4c 100644
--- a/docs/installation/native-installation.md
+++ b/docs/installation/native-installation.md
@@ -16,7 +16,7 @@ First of all, you need to install the following software on your system:
 ### Linux / MacOS
 * [GIT](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
 * [PostgreSQL 9.5](https://wiki.postgresql.org/wiki/Detailed_installation_guides)
-* [PHP 7.1 - 7.2](http://php.net/manual/en/install.php) (configure your `php.ini` by [Required PHP Configuration](../introduction/required-php-configuration.md))
+* [PHP 7.1 - 7.3](http://php.net/manual/en/install.php) (configure your `php.ini` by [Required PHP Configuration](../introduction/required-php-configuration.md))
 * [Composer](https://getcomposer.org/doc/00-intro.md#globally)
 * [Node.js with npm](https://nodejs.org/en/download/) (npm is automatically installed when you install Node.js)
 * [Redis](https://redis.io/topics/quickstart)
@@ -25,7 +25,7 @@ First of all, you need to install the following software on your system:
 ### Windows
 * [GIT](https://git-scm.com/download/win)
 * [PostgreSQL 9.5](https://www.enterprisedb.com/downloads/postgres-postgresql-downloads#windows)
-* [PHP 7.1 - 7.2](http://php.net/manual/en/install.windows.php) (configure your `php.ini` by [Required PHP Configuration](../introduction/required-php-configuration.md))
+* [PHP 7.1 - 7.3](http://php.net/manual/en/install.windows.php) (configure your `php.ini` by [Required PHP Configuration](../introduction/required-php-configuration.md))
 * [Composer](https://getcomposer.org/doc/00-intro.md#installation-windows)
 * [Node.js with npm](https://nodejs.org/en/download/) (npm is automatically installed when you install Node.js)
 * [Redis](https://github.com/MicrosoftArchive/redis/releases)
diff --git a/docs/introduction/shopsys-framework-on-docker.md b/docs/introduction/shopsys-framework-on-docker.md
index 65b2afcee8c..8b904c51045 100644
--- a/docs/introduction/shopsys-framework-on-docker.md
+++ b/docs/introduction/shopsys-framework-on-docker.md
@@ -65,7 +65,7 @@ kind of recipe by which final image is cooked.
 
 Dockerfile example command:
 ```dockerfile
-FROM php:7.2-fpm-alpine
+FROM php:7.3-fpm-alpine
 ```
 * The `FROM` instruction specifies the base image, from which you are building
 
diff --git a/docs/upgrade/UPGRADE-unreleased.md b/docs/upgrade/UPGRADE-unreleased.md
index b0671867acf..7f15683cbf7 100644
--- a/docs/upgrade/UPGRADE-unreleased.md
+++ b/docs/upgrade/UPGRADE-unreleased.md
@@ -13,6 +13,7 @@ There you can find links to upgrade notes for other versions too.
     - *(optional)* If you are using Kubernetes manifests for CI or deployment, follow changes done in manifests and ci `build_kubernetes.sh` script.
 - add `!docker/nginx` line into `.dockerignore` file so `docker/nginx` directory is not excluded during building `php-fpm` image ([#674](https://github.com/shopsys/shopsys/pull/674))
 - make sure your `webserver` service depends on `php-fpm` in your `docker-compose.yml` file so webserver will not fail on error `host not found in upstream php-fpm:9000` ([#679](https://github.com/shopsys/shopsys/pull/679))
+- *(optional)* in your `docker/php-fpm/Dockerfile` change base image to `php:7.3-fpm-alpine` ([#694](https://github.com/shopsys/shopsys/pull/694))
 
 ### Configuration
 - *(optional)* for easier deployment to production, make the trusted proxies in `Shopsys\Boostrap` class loaded from DIC parameter `trusted_proxies` instead of being hard-coded ([#596](https://github.com/shopsys/shopsys/pull/596))
diff --git a/microservices/product-search-export/.travis.yml b/microservices/product-search-export/.travis.yml
index 080c42905de..827360068f5 100644
--- a/microservices/product-search-export/.travis.yml
+++ b/microservices/product-search-export/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/microservices/product-search-export/docker/Dockerfile b/microservices/product-search-export/docker/Dockerfile
index c29fc4fb632..8045369e9e9 100644
--- a/microservices/product-search-export/docker/Dockerfile
+++ b/microservices/product-search-export/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.2-fpm-alpine as base
+FROM php:7.3-fpm-alpine as base
 
 # install nginx as in nginx:stable-alpine
 # https://hub.docker.com/r/library/nginx/tags/stable-alpine/
@@ -209,7 +209,7 @@ RUN composer global require hirak/prestissimo
 
 ########################################################################################################################
 
-FROM php:7.2-fpm-alpine as production-builder
+FROM php:7.3-fpm-alpine as production-builder
 
 ENV APP_ENV prod
 
diff --git a/microservices/product-search/docker/Dockerfile b/microservices/product-search/docker/Dockerfile
index c29fc4fb632..8045369e9e9 100644
--- a/microservices/product-search/docker/Dockerfile
+++ b/microservices/product-search/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.2-fpm-alpine as base
+FROM php:7.3-fpm-alpine as base
 
 # install nginx as in nginx:stable-alpine
 # https://hub.docker.com/r/library/nginx/tags/stable-alpine/
@@ -209,7 +209,7 @@ RUN composer global require hirak/prestissimo
 
 ########################################################################################################################
 
-FROM php:7.2-fpm-alpine as production-builder
+FROM php:7.3-fpm-alpine as production-builder
 
 ENV APP_ENV prod
 
diff --git a/packages/coding-standards/.travis.yml b/packages/coding-standards/.travis.yml
index c80f73efca6..28968bd8da5 100644
--- a/packages/coding-standards/.travis.yml
+++ b/packages/coding-standards/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/form-types-bundle/.travis.yml b/packages/form-types-bundle/.travis.yml
index ebe14cc6377..754caed1782 100644
--- a/packages/form-types-bundle/.travis.yml
+++ b/packages/form-types-bundle/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 install:
     - composer install
diff --git a/packages/framework/.travis.yml b/packages/framework/.travis.yml
index b04aa95f8b9..c616c0a4c72 100644
--- a/packages/framework/.travis.yml
+++ b/packages/framework/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/http-smoke-testing/.travis.yml b/packages/http-smoke-testing/.travis.yml
index 3e11a1945d9..d7a359d9c03 100644
--- a/packages/http-smoke-testing/.travis.yml
+++ b/packages/http-smoke-testing/.travis.yml
@@ -5,6 +5,7 @@ php:
     - 7.0
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/migrations/.travis.yml b/packages/migrations/.travis.yml
index 2ba783dc863..7b1ddaf4764 100644
--- a/packages/migrations/.travis.yml
+++ b/packages/migrations/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/plugin-interface/.travis.yml b/packages/plugin-interface/.travis.yml
index ebe14cc6377..754caed1782 100644
--- a/packages/plugin-interface/.travis.yml
+++ b/packages/plugin-interface/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 install:
     - composer install
diff --git a/packages/product-feed-google/.travis.yml b/packages/product-feed-google/.travis.yml
index c7d117c1dac..418233eeafc 100644
--- a/packages/product-feed-google/.travis.yml
+++ b/packages/product-feed-google/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/product-feed-heureka-delivery/.travis.yml b/packages/product-feed-heureka-delivery/.travis.yml
index 2768d838c0b..7bf02477837 100644
--- a/packages/product-feed-heureka-delivery/.travis.yml
+++ b/packages/product-feed-heureka-delivery/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/product-feed-heureka/.travis.yml b/packages/product-feed-heureka/.travis.yml
index 2768d838c0b..7bf02477837 100644
--- a/packages/product-feed-heureka/.travis.yml
+++ b/packages/product-feed-heureka/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/packages/product-feed-zbozi/.travis.yml b/packages/product-feed-zbozi/.travis.yml
index 2768d838c0b..7bf02477837 100644
--- a/packages/product-feed-zbozi/.travis.yml
+++ b/packages/product-feed-zbozi/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.1
     - 7.2
+    - 7.3
 
 cache:
     directories:
diff --git a/project-base/docker/php-fpm/Dockerfile b/project-base/docker/php-fpm/Dockerfile
index 545ff3c0370..0dbcd1f948c 100644
--- a/project-base/docker/php-fpm/Dockerfile
+++ b/project-base/docker/php-fpm/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.2-fpm-alpine as base
+FROM php:7.3-fpm-alpine as base
 
 ARG project_root=.
 ENV REDIS_PREFIX=''