diff --git a/Dockerfile b/Dockerfile
index 4c280b5..d09a9bb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1 +1 @@
-FROM jgraph/drawio
\ No newline at end of file
+FROM jgraph/drawio:latest
\ No newline at end of file
diff --git a/README.md b/README.md
index f2bda61..cea8ee5 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ This currently is just a regular DrawIO server.
 Given you have this service running at `http://localhost:8080/`, you can configure the BlueSpice diagram like this:
 
 ```php
-$GLOBALS['DrawioEditorBackendUrl'] = 'http://localhost:8080';
+$GLOBALS['wgDrawioEditorBackendUrl'] = 'http://localhost:8080';
 ```
 
 ## How to release a new version