diff --git a/backend/Dockerfile b/backend/Dockerfile
index 6e9094f..3b49d23 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,11 +1,7 @@
 FROM node:20-alpine AS builder
 
-# Install OpenSSL, Git, and Bash
-RUN apk add --no-cache openssl git bash curl
-
-# Install Bun for tinypdf-plus build
-RUN curl -fsSL https://bun.sh/install | bash && \
-    /root/.bun/bin/bun --version
+# Install OpenSSL and Git for Prisma and GitHub dependencies
+RUN apk add --no-cache openssl git
 
 WORKDIR /app
 
@@ -17,11 +13,6 @@ COPY prisma ./prisma/
 # Install dependencies
 RUN npm install
 
-# Build tinypdf-plus package (add bun to PATH)
-RUN cd node_modules/tinypdf-plus && \
-    PATH=/root/.bun/bin:$PATH /root/.bun/bin/bun run build || \
-    (echo "tinypdf-plus build failed" && exit 1)
-
 # Copy source
 COPY . .
 
diff --git a/backend/package.json b/backend/package.json
index 6ea2f84..0f114ca 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -10,8 +10,7 @@
     "lint": "eslint src/**/*.ts",
     "seed": "npx prisma db seed",
     "seed:demo": "node prisma/seed-demo.js",
-    "seed:all": "npx prisma db seed && node prisma/seed-demo.js",
-    "postinstall": "cd node_modules/tinypdf-plus && npm run build || true"
+    "seed:all": "npx prisma db seed && node prisma/seed-demo.js"
   },
   "prisma": {
     "seed": "node dist/prisma/seed.js"