diff --git a/Dockerfile b/Dockerfile
index e5533510..670db4ed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,8 +40,8 @@ RUN apt-get update && \
     apt-get install -y --no-install-recommends \
     # PHP
     php7.3 \
-    # PHP SQL drivers
-    php7.3-sqlite3 php7.3-mysql \
+    # PHP SQLite driver
+    php7.3-sqlite3 \
     # PHP extensions
     php-xml php7.3-gd php7.3-mbstring \
     # Nginx and PHP FPM to serve over HTTP
@@ -126,14 +126,9 @@ ENV \
   # nothing will get logged, ever.
   APP_LOG_LEVEL=notice \
   # Database config & credentials
-  # DB_CONNECTION can be mysql
+  # DB_CONNECTION can only be sqlite
   DB_CONNECTION=sqlite \
   DB_DATABASE="/srv/database/database.sqlite" \
-  # if you want to use MySQL:
-  DB_HOST=127.0.0.1 \
-  DB_PORT=3306 \
-  DB_USERNAME=homestead \
-  DB_PASSWORD=secret \
   # If you're looking for performance improvements, you could install memcached.
   CACHE_DRIVER=file \
   SESSION_DRIVER=file \
diff --git a/docker/README.md b/docker/README.md
index b61a6266..63037c99 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -11,6 +11,7 @@ ## Features
 - Runs without root as user `www-data`
 - [![Latest size](https://img.shields.io/docker/image-size/2fauth/2fauth/latest?label=Image%20size)](https://hub.docker.com/r/2fauth/2fauth/tags)
 - Compatible with `amd64` only for now
+- Stores data in a Sqlite database file
 
 ## Setup
 
@@ -73,12 +74,6 @@ ## Build the image
 docker build -t 2fauth/2fauth https://github.com/Bubka/2FAuth.git#fba9e29bd4e3bb697296bb0bde60ae869537528b
 ```
 
-## Change database
-
-If you want to change database, for example switch from SQLite to MySQL, there is no migration yet.
-
-You might want to remove the `installed` file bind mounted in `/2fauth` so the database is re-created.
-
 ## Implementation details
 
 - The container is based on `debian:buster-slim`
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 644bbf9c..299ac29e 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -37,15 +37,8 @@ services:
       # If you set it to debug your logs will grow large, and fast. If you set it to emergency probably
       # nothing will get logged, ever.
       - APP_LOG_LEVEL=notice
-      # Database config & credentials
-      # DB_CONNECTION can be mysql
-      - DB_CONNECTION=sqlite
+      # Database config (can only be sqlite)
       - DB_DATABASE="/srv/database/database.sqlite"
-      # if you want to use MySQL:
-      - DB_HOST=mysql
-      - DB_PORT=3306
-      - DB_USERNAME=homestead
-      - DB_PASSWORD=secret
       # If you're looking for performance improvements, you could install memcached.
       - CACHE_DRIVER=file
       - SESSION_DRIVER=file