diff --git a/README.md b/README.md
index d7e7f9e..2a1371f 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # The v4 API
 This repository holds the code for the Goteo **v4** API.
 
+> **NOTE**: Review the trusted certificates by OpenSSL. See: https://github.com/GoteoFoundation/v4/issues/43
+
 ## Installation
 This application requires [Docker](https://docs.docker.com/get-docker/) and the [Docker Compose](https://docs.docker.com/compose/install/) plugin.
 
@@ -31,7 +33,7 @@ UID=1001
 GID=1001
 
 APP_HTTP_PORT=8080
-APP_HTTPS_PORT=8433
+APP_HTTPS_PORT=8443
 ```
 
 Then feed your custom env vars to Compose:
@@ -41,7 +43,7 @@ docker compose --env-file .env.local up -d --build
 
 - Option B. Passing the variables through the shell.
 ```shell
-export APP_HTTP_PORT=8080 && export APP_HTTPS_PORT=8433
+export APP_HTTP_PORT=8080 && export APP_HTTPS_PORT=8443
 
 # Dynamic user and group id
 export UID=$(id -u) && export GID=$(id -g)
@@ -73,7 +75,7 @@ bin/docker php bin/console app:gateways:setup
 
 ## Usage
 
-The app should be live at [http://localhost:8091](http://localhost:8091) (or your specified ports). Keep in mind that the API address is [/v4](http://localhost:8091/v4).
+The app should be live at [http://localhost:8090](http://localhost:8090) (or your specified ports). Keep in mind that the API address is [/v4](http://localhost:8090/v4).
 
 You can access a real-time build of the OpenAPI spec file for v4 at [http://localhost:8090/v4/docs.json](http://localhost:8090/v4/docs.json), to be used, for example, with API development suites such as Hoppscotch. This file will be up to date with most of your latest changes.
 
@@ -83,6 +85,7 @@ For quick Docker access you can use the `bin/docker` shortcut to quickly `exec`
 
 - Login to mysql CLI: `bin/docker mariadb mysql -u goteo -pgoteo goteo`
 - Debug the symfony services: `bin/docker php bin/console debug:container`
+- List app custom commands: `bin/docker php bin/console list app`
 
 ## Testing
 
diff --git a/docker-compose.override.yml b/docker-compose.override.yml
index 5c29684..a776fbc 100644
--- a/docker-compose.override.yml
+++ b/docker-compose.override.yml
@@ -1,6 +1,7 @@
 services:
   php:
     volumes:
+      # ./docker/php/ssl/ca-certificates.crt:/etc/ssl/certs/ca-certificates.crt:ro
       - ./docker/php/conf.d/opcache.dev.ini:/usr/local/etc/php/conf.d/opcache.ini:ro
       - ./docker/php/conf.d/xdebug.dev.ini:/usr/local/etc/php/conf.d/xdebug.ini:ro
     extra_hosts:
diff --git a/docker-compose.yml b/docker-compose.yml
index 8bfe002..c1f6ba8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,6 +7,7 @@ services:
     container_name: goteo-v4-php
     volumes:
       - .:/app
+      - ./docker/php/conf.d/openssl.ini:/usr/local/etc/php/conf.d/openssl.ini:ro
       - ./docker/php/conf.d/opcache.ini:/usr/local/etc/php/conf.d/opcache.ini:ro
 
   nginx:
diff --git a/docker/php/Dockerfile b/docker/php/Dockerfile
index decc4a9..9219990 100644
--- a/docker/php/Dockerfile
+++ b/docker/php/Dockerfile
@@ -17,13 +17,19 @@ RUN docker-php-ext-install \
     intl \
     zip
 
+RUN docker-php-ext-install opcache
+
+RUN apk --no-cache add $PHPIZE_DEPS
+RUN pecl install apcu \
+    && docker-php-ext-enable apcu
+
+RUN curl --remote-name https://curl.se/ca/cacert.pem \
+    && mv cacert.pem /etc/ssl/certs/ca-certificates.crt
+
 COPY --from=composer:lts /usr/bin/composer /usr/local/bin/composer
 
-
 FROM base AS dev
 
-RUN docker-php-ext-install opcache
-
 RUN apk --no-cache add $PHPIZE_DEPS
 RUN pecl install xdebug \
     && docker-php-ext-enable xdebug
diff --git a/docker/php/conf.d/openssl.ini b/docker/php/conf.d/openssl.ini
new file mode 100644
index 0000000..e1b00fa
--- /dev/null
+++ b/docker/php/conf.d/openssl.ini
@@ -0,0 +1,2 @@
+[openssl]
+openssl.cafile=/etc/ssl/certs/ca-certificates.crt
diff --git a/docker/php/ssl/.gitignore b/docker/php/ssl/.gitignore
new file mode 100644
index 0000000..a4e94ec
--- /dev/null
+++ b/docker/php/ssl/.gitignore
@@ -0,0 +1 @@
+*.crt