diff --git a/Dockerfile b/Dockerfile
index 217b831..3b49b8b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 ###             STAGE 1: Build did-registrar app            ###
 ###############################################################
 
-FROM node:18-alpine AS builder
+FROM node:21-alpine AS builder
 
 # Set working directory
 WORKDIR /home/node/app
@@ -21,7 +21,7 @@ RUN npm run build
 ###             STAGE 2: Build did-registrar runner         ###
 ###############################################################
 
-FROM node:18-alpine AS runner
+FROM node:21-alpine AS runner
 
 # Set Node.js environment
 ENV NODE_ENV=production