diff --git a/services/ocr/Dockerfile b/services/ocr/Dockerfile
index b694c61..313a38e 100644
--- a/services/ocr/Dockerfile
+++ b/services/ocr/Dockerfile
@@ -1,14 +1,18 @@
-FROM pytorch/pytorch:2.5.1-cuda12.4-cudnn9-runtime
+FROM python:3.12-slim
 
 WORKDIR /app
 
-# PyMuPDF/Pillow 시스템 의존성
+# PyMuPDF/Pillow 시스템 의존성 + CUDA wheel 의 런타임 로더
 RUN apt-get update && apt-get install -y --no-install-recommends \
     libgl1 libglib2.0-0 && \
     apt-get clean && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+# torch / torchvision 는 PyTorch 인덱스의 cu126 wheel 고정.
+# native /opt/surya-ocr/venv 검증된 조합 (torch 2.11.0+cu126, transformers 4.57.x).
+RUN pip install --no-cache-dir \
+    --extra-index-url https://download.pytorch.org/whl/cu126 \
+    -r requirements.txt
 
 COPY server.py .
 
diff --git a/services/ocr/requirements.txt b/services/ocr/requirements.txt
index 2c78ef2..456de7a 100644
--- a/services/ocr/requirements.txt
+++ b/services/ocr/requirements.txt
@@ -1,3 +1,6 @@
+torch==2.11.0+cu126
+torchvision==0.26.0+cu126
+transformers==4.57.6
 surya-ocr==0.17.1
 pymupdf>=1.24.0,<2.0.0
 fastapi>=0.110.0,<1.0.0