diff --git a/Dockerfile b/Dockerfile
index 62fdb97..832cf20 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN if [ "$NPM_REGISTRY" != "https://registry.npmjs.org/" ]; then \
     fi
 
 # Install dependencies (ignore package-lock.json if using custom registry)
-RUN npm install
+RUN npm ci --unsafe-perm
 
 # Copy source code
 COPY frontend/ ./