diff --git a/Dockerfile b/Dockerfile
index 0454c7c..050444a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mhart/alpine-node:15.2.1 AS build
+FROM mhart/alpine-node:15.4.0 AS build
 
 WORKDIR /app
 COPY . .
@@ -7,7 +7,7 @@ RUN npm ci
 RUN SAPPER_TIMESTAMP=$(date +%s%3N) npm run build
 
 
-FROM mhart/alpine-node:15.2.1 AS deps
+FROM mhart/alpine-node:15.4.0 AS deps
 
 WORKDIR /app
 COPY package.json package-lock.json ./
@@ -15,7 +15,7 @@ COPY package.json package-lock.json ./
 RUN npm ci --production
 
 
-FROM mhart/alpine-node:15.2.1
+FROM mhart/alpine-node:15.4.0
 
 WORKDIR /app
 COPY --from=build /app/__sapper__/build __sapper__/build