diff --git a/Dockerfile b/Dockerfile
index 885bec9ba0b3efdebfc20c7ce7d192356337e555..da0047102572d203810d2f9e5ce8ec76063d0cba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -63,8 +63,6 @@ RUN pip install pre-commit 'ipython==5.3.0' && \
     pip install 'ipykernel==4.6.0' 'jupyter==1.0.0' && \
     pip install opencv-python
 
-# paddle is using numpy.flip, which is introduced since 1.12.0
-# RUN pip --no-cache-dir install 'numpy>=1.12.0'
 COPY ./python/requirements.txt /root/
 RUN pip install -r /root/requirements.txt