diff --git a/Dockerfile b/Dockerfile
index 06c09cc..4fdae05 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-FROM node:12-alpine
+FROM node:18-alpine
 
 WORKDIR /excalidraw-room
 
 COPY package.json yarn.lock ./
-RUN yarn
+RUN --mount=type=cache,target=/root/.yarn YARN_CACHE_FOLDER=/root/.yarn yarn
 
 COPY tsconfig.json ./
 COPY src ./src