diff --git a/README.md b/README.md
index d430d91..e6cd5cc 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,8 @@ It is meant as a drop in replacement of [esn-frontend-calendar](https://github.c
 
 ## Running it
 
+Requirement: node 24+
+
 ### Compile it and run it
 
 In the project directory, you can run: