diff --git a/Dockerfile b/Dockerfile
index c7fbe12c1bde45d863090d09a9f11b4e60df5922..5d4de6e30d8cb13c626565d477b1a24a2d2be4ae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -64,7 +64,7 @@ RUN pip install --upgrade pip && \
     pip install -U sphinx-rtd-theme==0.1.9 recommonmark && \
     pip install pre-commit 'requests==2.9.2' 'ipython==5.3.0' && \
     pip install 'ipykernel==4.6.0' 'jupyter==1.0.0' && \
-    pip install rarfile 'scipy>=0.19.0' 'nltk>=3.2.2'
+    pip install rarfile opencv-python 'scipy>=0.19.0' 'nltk>=3.2.2'
 
 # To fix https://github.com/PaddlePaddle/Paddle/issues/1954, we use
 # the solution in https://urllib3.readthedocs.io/en/latest/user-guide.html#ssl-py2