diff --git a/Dockerfile b/Dockerfile
index 53076c9..71f0153 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,8 +8,10 @@ WORKDIR /app
 # Copy package files
 COPY package*.json ./
 
-# Install dependencies
-RUN npm install
+# Install dependencies (use ci for reproducible installs) and ensure terser is available
+# Vite requires terser for production minification when configured; it's optional in Vite but
+# must be present if the build expects it.
+RUN npm ci && npm install --no-audit --no-fund --save-dev terser
 
 # Copy source files
 COPY . .