diff --git a/README.md b/README.md
index 876a7a72..cc15c6e7 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ To report bugs use [engelsystem/issues](https://github.com/engelsystem/engelsyst
 
 ### Additional requirements if you want to build the project by yourself
  * Node >= 8 (Development/Building only)
+ * npm (Development/Building only)
  * Yarn (Development/Building only)
  * PHP Composer (Development/Building only)