diff --git a/Dockerfile b/Dockerfile
index f17648de..67385fb8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,7 +30,7 @@ WORKDIR /app
 #######################################
 # image for creating the documentation
 ######################################
-FROM node:21.4.0-alpine as docs
+FROM node:21.5.0-alpine as docs
 
 # install packages
 RUN apk add --update --no-cache bash make git zsh curl tmux