diff --git a/README.md b/README.md
index 56dbfe7..e86e14b 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,8 @@ Docker, you can do so with ease.
 
   * Clone the code repository.
     ```
-    git clone --branch 4.x git@github.com:jigarius/toggl2redmine.git
+    # Replace x.y with a real branch name, e.g. 5.x
+    git clone --branch x.y git@github.com:jigarius/toggl2redmine.git
     cd toggl2redmine
     ```
   * Prepare docker containers.
@@ -157,7 +158,7 @@ your password or test Toggl 2 Redmine with more than one user accounts.
 
 * Thanks [Evolving Web](https://evolvingweb.ca/) for funding the initial
   development of this plugin.
-* Thanks [Jigar Mehta (Jigarius)](https://jigarius.com/about) (that's me)
+* Thanks [Jigarius](https://jigarius.com/about) (that's me)
   for spending many evenings and weekends to make this plugin possible.
 * Thanks [JetBrains](https://jetbrains.com/) for their Open Source License,
-  without which development would have been very difficult
+  without which development would have been very difficult.
diff --git a/docker-compose.yml b/docker-compose.yml
index 4379405..2464022 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,8 +1,8 @@
 version: '3.1'
 services:
   redmine:
-    image: redmine:4.x-toggl2redmine
-    container_name: t2r-4x-appserver
+    image: redmine:5.x-toggl2redmine
+    container_name: t2r-5x-appserver
     platform: linux/x86_64
     hostname: appserver
     build: .docker/redmine
@@ -27,7 +27,7 @@ services:
       - ./.docker/redmine/additional_environment.rb:/usr/src/redmine/config/additional_environment.rb
   mysql:
     image: mariadb:10.6
-    container_name: t2r-4x-mysql
+    container_name: t2r-5x-mysql
     hostname: mysql
     environment:
       MYSQL_ROOT_PASSWORD: root
@@ -40,7 +40,7 @@ services:
       - ./.docker/mysql/init:/docker-entrypoint-initdb.d
   node:
     image: node:16.x-toggl2redmine
-    container_name: t2r-4x-node
+    container_name: t2r-5x-node
     platform: linux/x86_64
     hostname: node
     build: .docker/node
@@ -49,7 +49,7 @@ services:
       - .:/app
   mailhog:
     image: mailhog/mailhog:v1.0.0
-    container_name: t2r-4x-mailhog
+    container_name: t2r-5x-mailhog
     platform: linux/x86_64
     hostname: mailhog
     ports: