diff --git a/Dockerfile b/Dockerfile
index a2e0dbb..00b848e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM node:14-alpine as builder
 COPY package.json package-lock.json ./
 RUN npm install
 
-COPY tsconfig.json next-env.d.ts .babelrc next.config.js ./
+COPY tsconfig.json next-env.d.ts .babelrc next.config.js next-sitemap.js ./
 COPY src src/
 COPY public public/
 COPY types types/
@@ -15,7 +15,7 @@ RUN npm run build
 
 FROM node:14-alpine as server
 WORKDIR /www
-COPY package.json package-lock.json next.config.js ./
+COPY package.json package-lock.json next.config.js next-sitemap.js ./
 COPY --from=builder .next .next
 COPY --from=builder node_modules node_modules
 COPY --from=builder public public
diff --git a/Dockerfile.prod b/Dockerfile.prod
index ceba872..5367289 100644
--- a/Dockerfile.prod
+++ b/Dockerfile.prod
@@ -3,7 +3,7 @@ FROM node:14-alpine as builder
 COPY package.json package-lock.json ./
 RUN npm install
 
-COPY tsconfig.json next-env.d.ts .babelrc next.config.js ./
+COPY tsconfig.json next-env.d.ts .babelrc next.config.js next-sitemap.js ./
 COPY src src/
 COPY public public/
 COPY types types/
@@ -15,7 +15,7 @@ RUN npm run build
 
 FROM node:14-alpine as server
 WORKDIR /www
-COPY package.json package-lock.json next.config.js ./
+COPY package.json package-lock.json next.config.js next-sitemap.js ./
 COPY --from=builder .next .next
 COPY --from=builder node_modules node_modules
 COPY --from=builder public public