diff --git a/src/e2e/Dockerfile b/src/e2e/Dockerfile
index 68f0c4f3..1fb1c7bf 100644
--- a/src/e2e/Dockerfile
+++ b/src/e2e/Dockerfile
@@ -6,6 +6,7 @@ FROM docker:27-cli AS docker-cli
 # Main image
 FROM node:22-slim
 
+ENV npm_config_cache=/tmp/npm-cache
 ENV PLAYWRIGHT_BROWSERS_PATH=/tmp/playwright-browsers
 
 ENV HOME=/tmp
@@ -30,7 +31,7 @@ RUN npm install
 COPY . ./
 
 # Fix ownership for the user (use numeric UID to avoid lookup issues)
-RUN chown -R $DOCKER_USER /app
+RUN chown -R $DOCKER_USER /tmp/npm-cache /app
 
 # Run test with unprivileged user
 USER $DOCKER_USER
diff --git a/src/frontend/Dockerfile b/src/frontend/Dockerfile
index c1ce376a..a3f61c92 100644
--- a/src/frontend/Dockerfile
+++ b/src/frontend/Dockerfile
@@ -1,9 +1,11 @@
 FROM node:22-alpine AS frontend-deps
 
+ENV npm_config_cache=/tmp/npm-cache
+
 ARG DOCKER_USER=1000
 WORKDIR /home/frontend/
 
-RUN chown -R ${DOCKER_USER} /home/frontend
+RUN mkdir -p /tmp/npm-cache && chown -R ${DOCKER_USER} /tmp/npm-cache /home/frontend
 
 # Install deps and run all npm commands as the user running the container
 USER ${DOCKER_USER}