diff --git a/README.md b/README.md
index 4bebbd8..3adeb36 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,4 @@ Then you need to install all requirements. To do so, open a terminal in the
 greenvironment project folder and execute "npm i". You can build the project by
 executing "gulp" in the terminal. To run the server you need
 to execute "node ./dist".
+Additionally the server needs a working redis server to connect to.