diff --git a/Dockerfile b/Dockerfile
index aa684f1..57f3f3d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,8 +27,10 @@ RUN apk add --no-cache dumb-init
 # Copy server package files
 COPY package*.json ./
 
-# Install production dependencies only
-RUN npm ci --only=production
+# Install build tools for native modules (better-sqlite3), then install deps
+RUN apk add --no-cache python3 make g++ && \
+    npm ci --omit=dev && \
+    apk del python3 make g++
 
 # Copy server code
 COPY server ./server